EL CHIMBORAZO & EL CARGUAIRAZO BY ALEXANDER VON HUMBOLDT

ALEXANDER VON HUMBOLDT (1769-1859

El Chimborazo (6,263 m -20,548 ft)  

Ecuador

1. Coloured aquatint by F. Arnold after J. Gmelin after Alexander von Humboldt.

2. Original print in Vista del Chimborazo y del Carguairazo from the book Vistas de las cordilleras y monumentos de los pueblos indígenas de América by Alexander von Himboldt and Aimé Bonpland, 1816

The mountain
El Chimborazo  (6,263 m -20,548 ft) is a currently inactive stratovolcano in the Cordillera Occidental range of the Andes ans the highest mountain in Ecuador and the Andes north of Peru ; it is higher than any more northerly summit in the Americas. Chimborazo is not the highest mountain by elevation above sea level, but its location along the equatorial bulge makes its summit the farthest point on the Earth's surface from the Earth's center.
Chimborazo is at the main end of the Ecuadorian Volcanic Arc, north west of the town of Riobamba. Chimborazo is in la Avenida de los Volcanes (the Avenue of Volcanoes) west of the Sanancajas mountain chain. Carihuairazo, Tungurahua, Tulabug, and El Altar are all mountains that neighbor Chimborazo.  The closest mountain peak, Carihuairazo, is 5.8 mi (9.3 km) from Chimborazo. There are many microclimates near Chimborazo, varying from desert in the Arenal to the humid mountains in the Abraspungo valley.
Its last known eruption is believed to have occurred around A.D. 550.
Until the beginning of the 19th century, it was thought that Chimborazo was the highest mountain on Earth (measured from sea level), and such reputation led to many attempts on its summit during the 17th and 18th centuries.
In 1746, the volcano was explored by French academicians from the  French Geodesic Mission. Their mission was to determine the sphericity of the Earth. Their work along with another team in Lapland established that the Earth was an oblate spheroid rather than a true sphere. They did not reach the summit of Chimborazo.
In 1802, during his expedition to South America, Baron Alexander von Humboldt, accompanied by Aimé Bonpland and the Ecuadorian Carlos Montufar, tried to reach the summit. From his description of the mountain, it seems that before he and his companions had to return suffering from altitude sickness they reached a point at 5,875 m, higher than previously attained by any European in recorded history. (Incans had reached much higher altitudes previously; see Llullaillaco). In 1831, Jean-Baptiste Boussingault and Colonel Hall reached a new "highest point", estimated to be 6,006 m.
El Carguairazo is an ancient collapsed volcano (to the right of Chimborazo on the engraving). The muddy flood which, in 1698, covered 18 square leagues of land, was not the result of an eruption proper. When the Carguairazo collapsed, the waters that it concealed in its breast rushed into the plain with impetuosity, and caused the disasters of which the historians of America speak.

The cartographer
Friedrich Wilhelm Heinrich Alexander von Humboldt was a Prussian geographer, naturalist, explorer, and influential proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography. Humboldt's advocacy of long-term systematic geophysical measurement laid the foundation for modern geomagnetic and meteorological monitoring.
Between 1799 and 1804, Humboldt travelled extensively in Latin America, exploring and describing it for the first time from a modern scientific point of view. His description of the journey was written up and published in an enormous set of volumes over 21 years. Humboldt was one of the first people to propose that the lands bordering the Atlantic Ocean were once joined (South America and Africa in particular). Humboldt resurrected the use of the word cosmos from the ancient Greek and assigned it to his multi-volume treatise, Kosmos, in which he sought to unify diverse branches of scientific knowledge and culture. This important work also motivated a holistic perception of the universe as one interacting entity.
On their way back to Europe from Mexico on their way to the United States, Humboldt and his fellow scientist Aimé Bonpland stopped in Cuba for a While. After their first stay in Cuba of three months they returned the mainland at Cartagena de Indias (now in Colombia), a major center of trade in northern South America. Ascending the swollen stream of the Magdalena River to Honda and arrived in Bogotá on July 6, 1801 where they met Spanish botanist José Celestino Mutis, the head of the Royal Botanical Expedition to New Granada, staying there until September 8, 1801. Mutis was generous with his time and gave Humboldt access to the huge pictorial record he had compiled since 1783. Humboldt had hopes of connecting with the French sailing expedition of Baudin, now finally underway, so Bonpland and Humboldt hurried to Ecuador. They crossed the frozen ridges of the Cordillera Real, they reached Quito on 6 January 1802, after a tedious and difficult journey.
Their stay in Ecuador was marked by the ascent of Pichincha and their climb of Chimborazo, where Humboldt and his party reached an altitude of 19,286 feet (5,878 m). This was a world record at the time, but a thousand feet short of the summit. Humboldt's journey concluded with an expedition to the sources of the Amazon en route for Lima, Peru.
At Callao, the main port for Peru, Humboldt observed the transit of Mercury. On 9 November and studied the fertilizing properties of guano, rich in nitrogen, the subsequent introduction of which into Europe was due mainly to his writings.
___________________________________________
2019 - Wandering Vertexes...
by Francis Rousseau

EL JORULLO SKETCHED BY ALEXANDER VON HUMBOLDT

 

 ALEXANDER VON HUMBOLDT (1769-1859)
El Jorullo (1,329m- 4,360ft)
Mexico

 In Volcan de Jorullo,  Vue des Coridllères et monumens des peuples indigènes de l'Amérique, 1816, Paris chez F. Schoell.

About this drawing
Alexander von Humboldt climbed El Jorullo during the Mexican portion of his scientific expedition to Spanish America. When he visited on 19 September 1803, its multiple cones were still smoldering and the air was extremely hot and filled with volcanic gases. He wrote a detailed description of the climb, noting that his face and those of his travel companions were burned. The volcano enriched the local soil and there was considerable vegetation. Humboldt sketched the volcano in the distance (see above), showing multiple smoking cones. Humboldt undertook the climb with his scientific travel partner Aimé Bonpland, as well as a local Basque settler Ramón Epelde, and two local indigenous servants, whose names have not been recorded. Humboldt noted their assistance on site. Humboldt also notes that he consulted a 1782 publication Rusticatio Mexicana, by Rafael Landívar, who calculated the height of the volcano and the temperature of the thermal waters.


The volcano
El Jorullo  (1,329m- 4,360ft) is a cinder cone volcano in Michoacán, central Mexico, on the southwest slope of the central plateau, 33 miles (53 kilometers) southeast of Uruapan in an area known as the Michoacán-Guanajuato volcanic field.  It is about 6 miles (10 km) east-northeast of La Huacana.  El Jorullo has four smaller cinder cones which have grown from its flanks.  El Jorullo's crater is about 1,300 by 1,640 feet (400 by 500 m) wide and 490 feet (150 m) deep.   El Jorullo is one of two known volcanoes to have developed in Mexico in recent history. The second, born about 183 years later, was named Parícutin after a nearby village that it eventually destroyed. Parícutin is about 50 miles (80 km) northwest of El Jorullo. El Jorullo was first erupted on 29 September 1759. Earthquakes occurred prior to this first day of eruption. Once the volcano started erupting, it continued for 15 years, eventually ending in 1774.
El Jorullo did not develop on a corn field like Parícutin did, but it did destroy what had been a rich agricultural area. It grew approximately 820 feet (250 meters) from the ground in the first six weeks. The eruptions from El Jorullo were primarily phreatic and phreatomagmatic. This 15 year eruption was the longest one El Jorullo has had, and was the longest cinder cone eruption known. Lava flows can still be seen to the north and west of the volcano.  Parícutin and El Jorullo both rose in an area known for its volcanoes. Called the Trans-Mexican Volcanic Belt, the region stretches about 700 miles (1,120 km) from east to west across southern Mexico. The eruptive activity deposited a layer of volcanic rock some 6,000 feet thick, creating a high and fertile plateau. During summer months, the heights snag moisture-laden breezes from the Pacific Ocean; rich farmland, in turn, has made this belt the most populous region in Mexico. Though the region already boasted three of the country's four largest cities: Mexico City, Puebla, and Guadalajara (the area around Parícutin, some 200 miles west of the capital), it was still a peaceful backwater inhabited by Purépecha in the early 1940s. The crater and lake can now be reached by car.


The artist
Friedrich Wilhelm Heinrich Alexander von Humboldt was a Prussian geographer, naturalist, explorer, and influential proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography. Humboldt's advocacy of long-term systematic geophysical measurement laid the foundation for modern geomagnetic and meteorological monitoring.
Between 1799 and 1804, Humboldt travelled extensively in Latin America, exploring and describing it for the first time from a modern scientific point of view. His description of the journey was written up and published in an enormous set of volumes over 21 years. Humboldt was one of the first people to propose that the lands bordering the Atlantic Ocean were once joined (South America and Africa in particular). Humboldt resurrected the use of the word cosmos from the ancient Greek and assigned it to his multi-volume treatise, Kosmos, in which he sought to unify diverse branches of scientific knowledge and culture. This important work also motivated a holistic perception of the universe as one interacting entity.
On their way back to Europe from Mexico on their way to the United States, Humboldt and his fellow scientist Aimé Bonpland stopped in Cuba for a while. After their first stay in Cuba of three months they returned the mainland at Cartagena de Indias (now in Colombia), a major center of trade in northern South America. Ascending the swollen stream of the Magdalena River to Honda and arrived in Bogotá on July 6, 1801 where they met Spanish botanist José Celestino Mutis, the head of the Royal Botanical Expedition to New Granada, staying there until September 8, 1801. Mutis was generous with his time and gave Humboldt access to the huge pictorial record he had compiled since 1783. Humboldt had hopes of connecting with the French sailing expedition of Baudin, now finally underway, so Bonpland and Humboldt hurried to Ecuador. They crossed the frozen ridges of the Cordillera Real, they reached Quito on 6 January 1802, after a tedious and difficult journey.
Their stay in Ecuador was marked by the ascent of Pichincha and their climb of Chimborazo, where Humboldt and his party reached an altitude of 19,286 feet (5,878 m). This was a world record at the time, but a thousand feet short of the summit. Humboldt's journey concluded with an expedition to the sources of the Amazon en route for Lima, Peru.
At Callao, the main port for Peru, Humboldt observed the transit of Mercury. On 9 November and studied the fertilizing properties of guano, rich in nitrogen, the subsequent introduction of which into Europe was due mainly to his writings.

___________________________________________ 

2021 - Wandering Vertexes and Mountain paintings 
by Francis Rousseau

LOS FRAILES OR THE ORGANS OF ACTOPAN BY ALEXANDER VON HUMBOLDT

ALEXANDER VON HUMBOLDT (1769-1859)
WILHELM FRIEDRICH ( 1760-1820), engraver
The Organs of Actopan or Los Frailes (1,140 m - 3,740 ft)
Mexico (Hidalgo)

In Vues des Cordillères, et monumens des peuples indigènes de l'Amérique from the book  Voyage aux régions équinoxiales du nouveau continent, 1813

About this engraving and the mountain
On May 23 and 24, Humboldt would tour the Actopan Valley, and then leave on May 25 for Mexico City. During the visit, Humboldt drew and studied the Organs of Actopan, also known as Los Frailes,located 17 km southeast of Actopan in the municipality of El Arenal. Humboldt determines their height trigonometrically.In Actopan. The slender part of the rock is a hundred meters high; but the absolute elevation of the summit of the mountain, where the Organos begin to stand out, is 585 toises (1,140 m - 3,740 ft) .  It is on the way from Mexico to the mines of Guanaxuatotjuon distinguishes from very far away, and standing out on Thoiizon, the rock of Mamanchota: it rises in the middle of a forest of oaks, and oflers a very picturesque aspect. 

The artist and explorer
Friedrich Wilhelm Heinrich Alexander von Humboldt was a Prussian geographer, naturalist, explorer, and influential proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography. Humboldt's advocacy of long-term systematic geophysical measurement laid the foundation for modern geomagnetic and meteorological monitoring.
Between 1799 and 1804, Humboldt travelled extensively in Latin America, exploring and describing it for the first time from a modern scientific point of view. His description of the journey was written up and published in an enormous set of volumes over 21 years. Humboldt was one of the first people to propose that the lands bordering the Atlantic Ocean were once joined (South America and Africa in particular). Humboldt resurrected the use of the word cosmos from the ancient Greek and assigned it to his multi-volume treatise, Kosmos, in which he sought to unify diverse branches of scientific knowledge and culture. This important work also motivated a holistic perception of the universe as one interacting entity.
On their way back to Europe from Mexico on their way to the United States, Humboldt and his fellow scientist Aimé Bonpland stopped in Cuba for a while. After their first stay in Cuba of three months they returned the mainland at Cartagena de Indias (now in Colombia), a major center of trade in northern South America. Ascending the swollen stream of the Magdalena River to Honda and arrived in Bogotá on July 6, 1801 where they met Spanish botanist José Celestino Mutis, the head of the Royal Botanical Expedition to New Granada, staying there until September 8, 1801. Mutis was generous with his time and gave Humboldt access to the huge pictorial record he had compiled since 1783. Humboldt had hopes of connecting with the French sailing expedition of Baudin, now finally underway, so Bonpland and Humboldt hurried to Ecuador. They crossed the frozen ridges of the Cordillera Real, they reached Quito on 6 January 1802, after a tedious and difficult journey.
Their stay in Ecuador was marked by the ascent of Pichincha and their climb of Chimborazo, where Humboldt and his party reached an altitude of 19,286 feet (5,878 m). This was a world record at the time, but a thousand feet short of the summit. Humboldt's journey concluded with an expedition to the sources of the Amazon en route for Lima, Peru.
At Callao, the main port for Peru, Humboldt observed the transit of Mercury. On 9 November and studied the fertilizing properties of guano, rich in nitrogen, the subsequent introduction of which into Europe was due mainly to his writings.
___________________________________________
2022 - Wandering Vertexes...
by Francis Rousseau

EL CHIMBORAZO SKETCHED BY ALEXANDER VON HUMBOLDT

 

ALEXANDER VON HUMBOLDT (1769-1859)
Chimborazo (6,263 m-20,549 ft)
Ecuador

In  El Chimborazo vu de la plaine de Tapia, 1810

The mountain
El Chimborazo (6,263 m -20,548 ft) is a currently inactive stratovolcano in the Cordillera Occidental range of the Andes ans the highest mountain in Ecuador and the Andes north of Peru ; it is higher than any more northerly summit in the Americas. Chimborazo is not the highest mountain by elevation above sea level, but its location along the equatorial bulge makes its summit the farthest point on the Earth's surface from the Earth's center.
Chimborazo is at the main end of the Ecuadorian Volcanic Arc, north west of the town of Riobamba. Chimborazo is in la Avenida de los Volcanes (the Avenue of Volcanoes) west of the Sanancajas mountain chain. Carihuairazo, Tungurahua, Tulabug, and El Altar are all mountains that neighbor Chimborazo. The closest mountain peak, Carihuairazo, is 5.8 mi (9.3 km) from Chimborazo. There are many microclimates near Chimborazo, varying from desert in the Arenal to the humid mountains in the Abraspungo valley.
Its last known eruption is believed to have occurred around A.D. 550.
Until the beginning of the 19th century, it was thought that Chimborazo was the highest mountain on Earth (measured from sea level), and such reputation led to many attempts on its summit during the 17th and 18th centuries.
In 1746, the volcano was explored by French academicians from the French Geodesic Mission. Their mission was to determine the sphericity of the Earth. Their work along with another team in Lapland established that the Earth was an oblate spheroid rather than a true sphere. They did not reach the summit of Chimborazo.
In 1802, during his expedition to South America, Baron Alexander von Humboldt, accompanied by Aimé Bonpland and the Ecuadorian Carlos Montufar, tried to reach the summit. From his description of the mountain, it seems that before he and his companions had to return suffering from altitude sickness they reached a point at 5,875 m, higher than previously attained by any European in recorded history. (Incans had reached much higher altitudes previously). In 1831, Jean-Baptiste Boussingault and Colonel Hall reached a new "highest point", estimated to be 6,006 m.
On 4 January 1880, the English climber Edward Whymper reached the summit of Chimborazo. The route that Whymper took up Chimborazo is now known as the Whymper route. Edward Whymper, and his Italian guides Louis Carrel and Jean-Antoine Carrel, were the first Europeans to summit a mountain higher than 20,000 feet. As there were many critics who doubted that Whymper had reached the summit, later in the same year he climbed to the summit again, choosing a different route (Pogyos) with the Ecuadorians David Beltrбn and Francisco Campaсa.


The cartographer and artist
Friedrich Wilhelm Heinrich Alexander von Humboldt was a Prussian geographer, naturalist, explorer, and influential proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography. Humboldt's advocacy of long-term systematic geophysical measurement laid the foundation for modern geomagnetic and meteorological monitoring.
Between 1799 and 1804, Humboldt travelled extensively in Latin America, exploring and describing it for the first time from a modern scientific point of view. His description of the journey was written up and published in an enormous set of volumes over 21 years. Humboldt was one of the first people to propose that the lands bordering the Atlantic Ocean were once joined (South America and Africa in particular). Humboldt resurrected the use of the word cosmos from the ancient Greek and assigned it to his multi-volume treatise, Kosmos, in which he sought to unify diverse branches of scientific knowledge and culture. This important work also motivated a holistic perception of the universe as one interacting entity.
On their way back to Europe from Mexico on their way to the United States, Humboldt and his fellow scientist Aimé Bonpland stopped in Cuba for a While. After their first stay in Cuba of three months they returned the mainland at Cartagena de Indias (now in Colombia), a major center of trade in northern South America. Ascending the swollen stream of the Magdalena River to Honda and arrived in Bogotá on July 6, 1801 where they met Spanish botanist José Celestino Mutis, the head of the Royal Botanical Expedition to New Granada, staying there until September 8, 1801. Mutis was generous with his time and gave Humboldt access to the huge pictorial record he had compiled since 1783. Humboldt had hopes of connecting with the French sailing expedition of Baudin, now finally underway, so Bonpland and Humboldt hurried to Ecuador. They crossed the frozen ridges of the Cordillera Real, they reached Quito on 6 January 1802, after a tedious and difficult journey.
Their stay in Ecuador was marked by the ascent of Pichincha and their climb of Chimborazo, where Humboldt and his party reached an altitude of 19,286 feet (5,878 m). This was a world record at the time, but a thousand feet short of the summit. Humboldt's journey concluded with an expedition to the sources of the Amazon en route for Lima, Peru.
At Callao, the main port for Peru, Humboldt observed the transit of Mercury. On 9 November and studied the fertilizing properties of guano, rich in nitrogen, the subsequent introduction of which into Europe was due mainly to his writings.

___________________________________________ 

2021 - Wandering Vertexes...
by Francis Rousseau

COFRE DE PEROTE / NAUPA-TECVUTÉPTL SKETCHED BY ALEXANDER VON HUMBOLDT

 

ALEXANDER VON HUMBOLDT (1769-1859),
Cofre de Perote/ Naupa-Tecutépetl (4,282 m (14,049 ft)
Mexico

 The mountain
Cofre de Perote, also known by its Nahuatl names Naupa-Tecutépetl ,  meaning something like "Place of Four Mountain" or "Mountain of the Lord of Four Places", is an inactive volcano located in the Mexican state of Veracruz, at the point where the Trans-Mexican Volcanic Belt, home to all of Mexico's highest peaks, joins the Sierra Madre Oriental. Cofre de Perote is Mexico's eighth highest mountain summit.
Cofre de Perote is a shield volcano, shaped very differently from the stratovolcanic Pico de Orizaba, which lies about 50 km (31 mi) to the southeast. A cofre is a coffer, and the name alludes to a volcanic outcropping on the shield which constitutes the peak of the mountain. To the north is the town of Perote, Veracruz, after which the mountain is named. The area surrounding the volcano was protected by the Mexican government as a national park, known as Cofre de Perote National Park (Parque Nacional Cofre de Perote), in 1937.

The artist
Friedrich Wilhelm Heinrich Alexander von Humboldt was a Prussian geographer, naturalist, explorer, and influential proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography. Humboldt's advocacy of long-term systematic geophysical measurement laid the foundation for modern geomagnetic and meteorological monitoring.
Between 1799 and 1804, Humboldt travelled extensively in Latin America, exploring and describing it for the first time from a modern scientific point of view. His description of the journey was written up and published in an enormous set of volumes over 21 years. Humboldt was one of the first people to propose that the lands bordering the Atlantic Ocean were once joined (South America and Africa in particular). Humboldt resurrected the use of the word cosmos from the ancient Greek and assigned it to his multi-volume treatise, Kosmos, in which he sought to unify diverse branches of scientific knowledge and culture. This important work also motivated a holistic perception of the universe as one interacting entity.
On their way back to Europe from Mexico on their way to the United States, Humboldt and his fellow scientist Aimé Bonpland stopped in Cuba for a while. After their first stay in Cuba of three months they returned the mainland at Cartagena de Indias (now in Colombia), a major center of trade in northern South America. Ascending the swollen stream of the Magdalena River to Honda and arrived in Bogotá on July 6, 1801 where they met Spanish botanist José Celestino Mutis, the head of the Royal Botanical Expedition to New Granada, staying there until September 8, 1801. Mutis was generous with his time and gave Humboldt access to the huge pictorial record he had compiled since 1783. Humboldt had hopes of connecting with the French sailing expedition of Baudin, now finally underway, so Bonpland and Humboldt hurried to Ecuador. They crossed the frozen ridges of the Cordillera Real, they reached Quito on 6 January 1802, after a tedious and difficult journey.
Their stay in Ecuador was marked by the ascent of Pichincha and their climb of Chimborazo, where Humboldt and his party reached an altitude of 19,286 feet (5,878 m). This was a world record at the time, but a thousand feet short of the summit. Humboldt's journey concluded with an expedition to the sources of the Amazon en route for Lima, Peru.
At Callao, the main port for Peru, Humboldt observed the transit of Mercury. On 9 November and studied the fertilizing properties of guano, rich in nitrogen, the subsequent introduction of which into Europe was due mainly to his writings.
___________________________________________
2021 - Wandering Vertexes...
by Francis Rousseau

PICO DEL TEIDE SKETCHED BY ALEXANDER VON HUMBOLDT

 

ALEXANDER VON HUMBOLDT (1769-1859)
Pico del Teide (3, 718 m -12, 198 ft)
Tenerife - Canari Islands - Spain

 In  "Intérieur du Cratère du Pic de Teneriffe " Dessin, Alexander von Humboldt

The mountain
Pico del Teide (3,718m - 12,198 ft) (« Teide Peak") is a volcano on Tenerife in the Canary Islands, Spain. Before the 1495 Spanish colonization of Tenerife, the native Guanches called the volcano Echeyde, which in their legends referred to a powerful figure leaving the volcano, which could turn into hell. El Pico del Teide is the modern Spanish name.
Its summit is the highest point in Spain and the highest point above sea level in the islands of the Atlantic. If measured from its base on the ocean floor, it is at 7,500 m-24,600 ft the third highest volcano on a volcanic ocean island in the world after Mauna Kea and Mauna Loa in Hawaii. Its elevation makes Tenerife the tenth highest island in the world. It remains active: its most recent eruption occurred in 1909 from the El Chinyero vent on the northwestern Santiago rift.
Historical volcanic activity on the island is associated with vents on the Santiago or northwest rift (Boca Cangrejo in 1492, Montañas Negras in 1706, Narices del Teide or Chahorra in 1798 and El Chinyero in 1909) and the Cordillera Dorsal or northeast rift (Fasnia in 1704, Siete Fuentes and Arafo in 1705). The 1706 Montañas Negras eruption destroyed the town and principal port of Garachico, as well as several smaller villages.
In 1492, Christopher Columbus reported seeing "a great fire in the Orotava Valley" as he sailed past Tenerife on his voyage to discover the New World. This was interpreted as indicating that he had witnessed an eruption there. Radiometric dating of possible lavas indicates that in 1492 no eruption occurred in the Orotava Valley, but one did occur from the Boca Cangrejo vent.
The last summit eruption from Teide occurred about the year 850 CE, and this eruption produced the "Lavas Negras" that cover much of the flanks of the volcano.
About 150,000 years ago, a much larger explosive eruption occurred, probably of Volcanic Explosivity Index 5.
The United Nations Committee for Disaster Mitigation designated Teide a Decade Volcano because of its history of destructive eruptions and its proximity to several large towns, of which the closest are Garachico, Icod de los Vinos and Puerto de la Cruz. Teide, Pico Viejo and Montaсa Blanca form the Central Volcanic Complex of Tenerife.
In a publication of 1626, Sir Edmund Scory, who probably stayed on the island in the first decades of the 17th century, gives a description of Teide, in which he notes the suitable paths to the top and the effects the considerable height causes to the travellers, indicating that the volcano had been accessed via different routes before the 17th century. In 1715 the English traveler J. Edens and his party made the ascent and reported their observations in the journal of the Royal Society in London.
After the Enlightenment, most of the expeditions that went to East Africa and the Pacific had Teide as one of the most rewarding targets. The expedition of Lord George Macartney, George Staunton and John Barrow in 1792 almost ended in tragedy, as a major snowstorm and rain swept over them and they failed to reach the peak of Teide, just barely getting past Montaña Blanca.
During an expedition to Kilimanjaro, the German adventurer Hans Heinrich Joseph Meyer visited Teide in 1894 to observe ice conditions on the volcano. He described the two mountains as "two kings, one rising in the ocean and the other in the desert and steppes"
The volcano and its surroundings comprise Teide National Park, which has an area of 18,900 hectares (47,000 acres) and was named a World Heritage Site by UNESCO on June 28, 2007. Teide is the most visited natural wonder of Spain, the most visited national park in Spain and Europe and – by 2015 – the eighth most visited in the world, with some 3 million visitors yearly. A major international astronomical observatory is located on the slopes of the mountain.

The cartographer
Friedrich Wilhelm Heinrich Alexander von Humboldt was a Prussian geographer, naturalist, explorer, and influential proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography. Humboldt's advocacy of long-term systematic geophysical measurement laid the foundation for modern geomagnetic and meteorological monitoring.
Between 1799 and 1804, Humboldt travelled extensively in Latin America, exploring and describing it for the first time from a modern scientific point of view. His description of the journey was written up and published in an enormous set of volumes over 21 years. Humboldt was one of the first people to propose that the lands bordering the Atlantic Ocean were once joined (South America and Africa in particular). Humboldt resurrected the use of the word cosmos from the ancient Greek and assigned it to his multi-volume treatise, Kosmos, in which he sought to unify diverse branches of scientific knowledge and culture. This important work also motivated a holistic perception of the universe as one interacting entity.
On their way back to Europe from Mexico on their way to the United States, Humboldt and his fellow scientist Aimé Bonpland stopped in Cuba for a While. After their first stay in Cuba of three months they returned the mainland at Cartagena de Indias (now in Colombia), a major center of trade in northern South America. Ascending the swollen stream of the Magdalena River to Honda and arrived in Bogotá on July 6, 1801 where they met Spanish botanist José Celestino Mutis, the head of the Royal Botanical Expedition to New Granada, staying there until September 8, 1801. Mutis was generous with his time and gave Humboldt access to the huge pictorial record he had compiled since 1783. Humboldt had hopes of connecting with the French sailing expedition of Baudin, now finally underway, so Bonpland and Humboldt hurried to Ecuador. They crossed the frozen ridges of the Cordillera Real, they reached Quito on 6 January 1802, after a tedious and difficult journey.
Their stay in Ecuador was marked by the ascent of Pichincha and their climb of Chimborazo, where Humboldt and his party reached an altitude of 19,286 feet (5,878 m). This was a world record at the time, but a thousand feet short of the summit. Humboldt's journey concluded with an expedition to the sources of the Amazon en route for Lima, Peru.
At Callao, the main port for Peru, Humboldt observed the transit of Mercury. On 9 November and studied the fertilizing properties of guano, rich in nitrogen, the subsequent introduction of which into Europe was due mainly to his writings.

___________________________________________
2022 - Wandering Vertexes...
by Francis Rousseau

EL CHIMBORAZO MAPPED BY ALEXANDER VON HUMBOLDT

ALEXANDER VON HUMBOLDT  (1769-1859) 

Chimborazo  (6,263 m - 20,549  ft)

Ecuador

(Click images to enlarge)

In Map of the Mountain Chimborazo in 1802

The mountain

Chimborazo  (6,263 m -20,548 ft) is a currently inactive stratovolcano in the Cordillera Occidental range of the Andes ans the highest mountain in Ecuador and the Andes north of Peru ; it is higher than any more northerly summit in the Americas. Chimborazo is not the highest mountain by elevation above sea level, but its location along the equatorial bulge makes its summit the farthest point on the Earth's surface from the Earth's center.

Chimborazo is at the main end of the Ecuadorian Volcanic Arc, north west of the town of Riobamba. Chimborazo is in la Avenida de los Volcanes (the Avenue of Volcanoes) west of the Sanancajas mountain chain. Carihuairazo, Tungurahua, Tulabug, and El Altar are all mountains that neighbor Chimborazo.  The closest mountain peak, Carihuairazo, is 5.8 mi (9.3 km) from Chimborazo. There are many microclimates near Chimborazo, varying from desert in the Arenal to the humid mountains in the Abraspungo valley.

Its last known eruption is believed to have occurred around A.D. 550. 

Until the beginning of the 19th century, it was thought that Chimborazo was the highest mountain on Earth (measured from sea level), and such reputation led to many attempts on its summit during the 17th and 18th centuries.

In 1746, the volcano was explored by French academicians from the  French Geodesic Mission. Their mission was to determine the sphericity of the Earth. Their work along with another team in Lapland established that the Earth was an oblate spheroid rather than a true sphere. They did not reach the summit of Chimborazo.

In 1802, during his expedition to South America, Baron Alexander von Humboldt, accompanied by Aimé Bonpland and the Ecuadorian Carlos Montufar, tried to reach the summit. From his description of the mountain, it seems that before he and his companions had to return suffering from altitude sickness they reached a point at 5,875 m, higher than previously attained by any European in recorded history. (Incans had reached much higher altitudes previously). In 1831, Jean-Baptiste Boussingault and Colonel Hall reached a new "highest point", estimated to be 6,006 m.

On 4 January 1880, the English climber Edward Whymper reached the summit of Chimborazo. The route that Whymper took up Chimborazo is now known as the Whymper route. Edward Whymper, and his Italian guides Louis Carrel and Jean-Antoine Carrel, were the first Europeans to summit a mountain higher than 20,000 feet. As there were many critics who doubted that Whymper had reached the summit, later in the same year he climbed to the summit again, choosing a different route (Pogyos) with the Ecuadorians David Beltrбn and Francisco Campaсa.

The cartographer 

Friedrich Wilhelm Heinrich Alexander von Humboldt was a Prussian geographer, naturalist, explorer, and influential proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography. Humboldt's advocacy of long-term systematic geophysical measurement laid the foundation for modern geomagnetic and meteorological monitoring.

Between 1799 and 1804, Humboldt travelled extensively in Latin America, exploring and describing it for the first time from a modern scientific point of view. His description of the journey was written up and published in an enormous set of volumes over 21 years. Humboldt was one of the first people to propose that the lands bordering the Atlantic Ocean were once joined (South America and Africa in particular). Humboldt resurrected the use of the word cosmos from the ancient Greek and assigned it to his multi-volume treatise, Kosmos, in which he sought to unify diverse branches of scientific knowledge and culture. This important work also motivated a holistic perception of the universe as one interacting entity.

On their way back to Europe from Mexico on their way to the United States, Humboldt and his fellow scientist Aimé Bonpland stopped in Cuba for a While. After their first stay in Cuba of three months they returned the mainland at Cartagena de Indias (now in Colombia), a major center of trade in northern South America. Ascending the swollen stream of the Magdalena River to Honda and arrived in Bogotá on July 6, 1801 where they met Spanish botanist José Celestino Mutis, the head of the Royal Botanical Expedition to New Granada, staying there until September 8, 1801. Mutis was generous with his time and gave Humboldt access to the huge pictorial record he had compiled since 1783.  Humboldt had hopes of connecting with the French sailing expedition of Baudin, now finally underway, so Bonpland and Humboldt hurried to Ecuador. They crossed the frozen ridges of the Cordillera Real, they reached Quito on 6 January 1802, after a tedious and difficult journey.

Their stay in Ecuador was marked by the ascent of Pichincha and their climb of Chimborazo, where Humboldt and his party reached an altitude of 19,286 feet (5,878 m). This was a world record at the time, but a thousand feet short of the summit.  Humboldt's journey concluded with an expedition to the sources of the Amazon en route for Lima, Peru.

At Callao, the main port for Peru, Humboldt observed the transit of Mercury. On 9 November and studied the fertilizing properties of guano, rich in nitrogen, the subsequent introduction of which into Europe was due mainly to his writings.

EL CHIMBORAZO (2) BY ALEXANDER VON HUMBOLDT

ALEXANDER VON HUMBOLDT  (1769-1859)

Chimborazo  (6,263 m - 20,549  ft)

Ecuador

In   Vues des Cordillères et Monumens des Peuples Indigènes de l’Amérique

The mountain

Chimborazo  (6,263 m -20,548 ft) is a currently inactive stratovolcano in the Cordillera Occidental range of the Andes ans the highest mountain in Ecuador and the Andes north of Peru ; it is higher than any more northerly summit in the Americas. Chimborazo is not the highest mountain by elevation above sea level, but its location along the equatorial bulge makes its summit the farthest point on the Earth's surface from the Earth's center.

Chimborazo is at the main end of the Ecuadorian Volcanic Arc, north west of the town of Riobamba. Chimborazo is in la Avenida de los Volcanes (the Avenue of Volcanoes) west of the Sanancajas mountain chain. Carihuairazo, Tungurahua, Tulabug, and El Altar are all mountains that neighbor Chimborazo.  The closest mountain peak, Carihuairazo, is 5.8 mi (9.3 km) from Chimborazo. There are many microclimates near Chimborazo, varying from desert in the Arenal to the humid mountains in the Abraspungo valley.

Its last known eruption is believed to have occurred around A.D. 550. 

Until the beginning of the 19th century, it was thought that Chimborazo was the highest mountain on Earth (measured from sea level), and such reputation led to many attempts on its summit during the 17th and 18th centuries.

In 1746, the volcano was explored by French academicians from the  French Geodesic Mission. Their mission was to determine the sphericity of the Earth. Their work along with another team in Lapland established that the Earth was an oblate spheroid rather than a true sphere. They did not reach the summit of Chimborazo.

In 1802, during his expedition to South America, Baron Alexander von Humboldt, accompanied by Aimé Bonpland and the Ecuadorian Carlos Montufar, tried to reach the summit. From his description of the mountain, it seems that before he and his companions had to return suffering from altitude sickness they reached a point at 5,875 m, higher than previously attained by any European in recorded history. (Incans had reached much higher altitudes previously). In 1831, Jean-Baptiste Boussingault and Colonel Hall reached a new "highest point", estimated to be 6,006 m.

On 4 January 1880, the English climber Edward Whymper reached the summit of Chimborazo. The route that Whymper took up Chimborazo is now known as the Whymper route. Edward Whymper, and his Italian guides Louis Carrel and Jean-Antoine Carrel, were the first Europeans to summit a mountain higher than 20,000 feet. As there were many critics who doubted that Whymper had reached the summit, later in the same year he climbed to the summit again, choosing a different route (Pogyos) with the Ecuadorians David Beltrбn and Francisco Campaсa.

The cartographer 

Friedrich Wilhelm Heinrich Alexander von Humboldt was a Prussian geographer, naturalist, explorer, and influential proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography. Humboldt's advocacy of long-term systematic geophysical measurement laid the foundation for modern geomagnetic and meteorological monitoring.

Between 1799 and 1804, Humboldt travelled extensively in Latin America, exploring and describing it for the first time from a modern scientific point of view. His description of the journey was written up and published in an enormous set of volumes over 21 years. Humboldt was one of the first people to propose that the lands bordering the Atlantic Ocean were once joined (South America and Africa in particular). Humboldt resurrected the use of the word cosmos from the ancient Greek and assigned it to his multi-volume treatise, Kosmos, in which he sought to unify diverse branches of scientific knowledge and culture. This important work also motivated a holistic perception of the universe as one interacting entity.

On their way back to Europe from Mexico on their way to the United States, Humboldt and his fellow scientist Aimé Bonpland stopped in Cuba for a While. After their first stay in Cuba of three months they returned the mainland at Cartagena de Indias (now in Colombia), a major center of trade in northern South America. Ascending the swollen stream of the Magdalena River to Honda and arrived in Bogotá on July 6, 1801 where they met Spanish botanist José Celestino Mutis, the head of the Royal Botanical Expedition to New Granada, staying there until September 8, 1801. Mutis was generous with his time and gave Humboldt access to the huge pictorial record he had compiled since 1783.  Humboldt had hopes of connecting with the French sailing expedition of Baudin, now finally underway, so Bonpland and Humboldt hurried to Ecuador. They crossed the frozen ridges of the Cordillera Real, they reached Quito on 6 January 1802, after a tedious and difficult journey.

Their stay in Ecuador was marked by the ascent of Pichincha and their climb of Chimborazo, where Humboldt and his party reached an altitude of 19,286 feet (5,878 m). This was a world record at the time, but a thousand feet short of the summit.  Humboldt's journey concluded with an expedition to the sources of the Amazon en route for Lima, Peru.

At Callao, the main port for Peru, Humboldt observed the transit of Mercury. On 9 November and studied the fertilizing properties of guano, rich in nitrogen, the subsequent introduction of which into Europe was due mainly to his writings.

___________________________________________

2019 - Wandering Vertexes...

by Francis Rousseau 

EL COTOPAXI BY ALEXANDER VON HUMBOLDT

ALEXANDER VON HUMBOLDT (1769-1859) 

Cotopaxi (5,897 m - 19,347 ft) 

Ecuador 

The mountain
El Cotopaxi  (5,897 m - 19,347 ft) is an active stratovolcano in the Andes Mountains,  located in the Latacunga canton of Cotopaxi Province, about 50 km (31 mi) south of Quito, and 33 km (21 mi) northeast of the city of Latacunga, Ecuador, in South America.  It is one of the world's highest volcanoes. Many sources claim that Cotopaxi means "Neck of the Moon" in an indigenous language, but this is unproven. The mountain was honored as a "Sacred Mountain" by local Andean people, even prior to the Inca invasion in the 15th century.
Most of the time, Cotopaxi is clearly visible on the skyline from Quito and is part of the chain of volcanoes around the Pacific plate known as the Pacific Ring of Fire. It has an almost symmetrical cone that rises from a highland plain of about 3,800 metres (12,500 ft), with a width at its base of about 23 kilometres (14 mi). It has one of the few equatorial glaciers in the world, which starts at the height of 5,000 metres (16,400 ft). At its summit, Cotopaxi has an 800 X 550 m wide crater which is 250 m deep. The crater consists of two concentric crater rims, the outer one being partly free of snow and irregular in shape. The crater interior is covered with ice cornices and rather flat. The highest point is on the outer rim of the crater on the north side.
The first recorded eruption of Cotopaxi was in 1534. With 87 known eruptions since then, Cotopaxi is one of Ecuador's most active volcanoes.

The artist
Friedrich Wilhelm Heinrich Alexander von Humboldt was a Prussian geographer, naturalist, explorer, and influential proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography. Humboldt's advocacy of long-term systematic geophysical measurement laid the foundation for modern geomagnetic and meteorological monitoring.
Between 1799 and 1804, Humboldt travelled extensively in Latin America, exploring and describing it for the first time from a modern scientific point of view. His description of the journey was written up and published in an enormous set of volumes over 21 years. Humboldt was one of the first people to propose that the lands bordering the Atlantic Ocean were once joined (South America and Africa in particular). Humboldt resurrected the use of the word cosmos from the ancient Greek and assigned it to his multi-volume treatise, Kosmos, in which he sought to unify diverse branches of scientific knowledge and culture. This important work also motivated a holistic perception of the universe as one interacting entity.
On their way back to Europe from Mexico on their way to the United States, Humboldt and his fellow scientist Aimé Bonpland stopped in Cuba for a while. After their first stay in Cuba of three months they returned the mainland at Cartagena de Indias (now in Colombia), a major center of trade in northern South America. Ascending the swollen stream of the Magdalena River to Honda and arrived in Bogotá on July 6, 1801 where they met Spanish botanist José Celestino Mutis, the head of the Royal Botanical Expedition to New Granada, staying there until September 8, 1801. Mutis was generous with his time and gave Humboldt access to the huge pictorial record he had compiled since 1783. Humboldt had hopes of connecting with the French sailing expedition of Baudin, now finally underway, so Bonpland and Humboldt hurried to Ecuador. They crossed the frozen ridges of the Cordillera Real, they reached Quito on 6 January 1802, after a tedious and difficult journey.
Their stay in Ecuador was marked by the ascent of Pichincha and their climb of Chimborazo, where Humboldt and his party reached an altitude of 19,286 feet (5,878 m). This was a world record at the time, but a thousand feet short of the summit. Humboldt's journey concluded with an expedition to the sources of the Amazon en route for Lima, Peru.
At Callao, the main port for Peru, Humboldt observed the transit of Mercury. On 9 November and studied the fertilizing properties of guano, rich in nitrogen, the subsequent introduction of which into Europe was due mainly to his writings. 

___________________________________________
2019 - Wandering Vertexes...
by Francis Rousseau

EL CAYAMBE BY ALEXANDER VON HUMBOLDT

ALEXANDER VON HUMBOLDT  (1769-1859) 

 Cayambe  (5,790 m -19,000 ft)

 Ecuador

  In Vues des Cordillères et Monumens des Peuples Indigènes de l’Amérique  

book published in 1816 in Paris,  University of Ottawa 

The mountain 
Cayambe or Volcбn Cayambe (5,790 m -19,000 ft) is the name of a volcano located in the Cordillera Central, a range of the Ecuadorian Andes. It is located in Pichincha province some 70 km (43 mi) northeast of Quito. It is the third highest mountain in Ecuador.
Cayambe, which has a permanent snow cap, is a Holocene compound volcano which last erupted in March 1786. At 4,690 metres (15,387 ft) on its south slope is the highest point in the world crossed by the Equator and the only point on the Equator with snow cover. The volcano and most of its slopes are within the Cayambe Coca Ecological Reserve.  Studies conducted since 1995 by a joint team of Ecuadorian and French researchers have shown that during the last 4000, the Cayambe has experienced periods of intense eruptive activity about 700 years alternating with rest periods of 500 to 600 years. The resumption of eruptions must be considered.
Moreover, the region is home to numerous flower plantations for export; however, the non-secure management and toxic effects of these crops have caused serious damage to the environment and create health problems among employees of the plantations.

The cartographer and painter  
Friedrich Wilhelm Heinrich Alexander von Humboldt was a Prussian geographer, naturalist, explorer, and influential proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography. Humboldt's advocacy of long-term systematic geophysical measurement laid the foundation for modern geomagnetic and meteorological monitoring.
Between 1799 and 1804, Humboldt travelled extensively in Latin America, exploring and describing it for the first time from a modern scientific point of view. His description of the journey was written up and published in an enormous set of volumes over 21 years. Humboldt was one of the first people to propose that the lands bordering the Atlantic Ocean were once joined (South America and Africa in particular). Humboldt resurrected the use of the word cosmos from the ancient Greek and assigned it to his multi-volume treatise, Kosmos, in which he sought to unify diverse branches of scientific knowledge and culture. This important work also motivated a holistic perception of the universe as one interacting entity.
On their way back to Europe from Mexico on their way to the United States, Humboldt and his fellow scientist Aimé Bonpland stopped in Cuba for a while. After their first stay in Cuba of three months they returned the mainland at Cartagena de Indias (now in Colombia), a major center of trade in northern South America. Ascending the swollen stream of the Magdalena River to Honda and arrived in Bogotá on July 6, 1801 where they met Spanish botanist José Celestino Mutis, the head of the Royal Botanical Expedition to New Granada, staying there until September 8, 1801. Mutis was generous with his time and gave Humboldt access to the huge pictorial record he had compiled since 1783.  Humboldt had hopes of connecting with the French sailing expedition of Baudin, now finally underway, so Bonpland and Humboldt hurried to Ecuador. They crossed the frozen ridges of the Cordillera Real, they reached Quito on 6 January 1802, after a tedious and difficult journey.
Their stay in Ecuador was marked by the ascent of Pichincha and their climb of Chimborazo, where Humboldt and his party reached an altitude of 19,286 feet (5,878 m). This was a world record at the time, but a thousand feet short of the summit.  Humboldt's journey concluded with an expedition to the sources of the Amazon en route for Lima, Peru.

2018 - Wandering Vertexes...
by Francis Rousseau 

EL PINCHICHA BY ALEXANDER VON HUMBOLDT

ALEXANDER VON HUMBOLDT  (1769-1859)

El Pinchicha (4,784 m -15,696 ft)

Ecuador

In  El  Pinchicha  Vues des Cordillères et Monumens des Peuples Indigènes de l’Amérique,

gravure, published in Paris by F. Schoell in 1810  

The mountain 
El Pichincha   (4,784 m -15,696 ft)  is an active stratovolcano situated in  Ecuador. The two highest peaks of the mountain are Wawa Pichincha (Hispanicized spelling Guagua Pichincha  meaning child, baby or small  and Ruku Pichincha (Hispanicized Rucu Pichincha meaning old person, in Kithwa rujku langage) (4,698 metres (15,413 ft)). The active caldera is in Wawa Pichincha on the western side of the mountain.
Both peaks are visible from the city of Quito and both are popular acclimatization climbs.
 In October 1999, the volcano erupted and covered the city with several inches of ash. Prior to that, the last major eruptions were in 1553 and during the Plinian eruption of 1660, when about 30 cm of ash fell on the city of Quito.
In 1737 several members of the French Geodesic Mission to the Equator, including Charles-Marie de La Condamine, Pierre Bouguer and Antonio de Ulloa, spent 23 days on the summit of Rucu Pichincha as part of their triangulation work to calculate the length of a degree of latitude.
On 17 June 1742, during the same mission, La Condamine and Bouguer made an ascent of Guagua Pichincha and looked down into the crater of the volcano, which had last erupted in 1660. La Condamine compared what he saw to the underworld.
On May 24, 1822, General Sucre's southern campaign, in the context of the Spanish-America war of independence, came to a climax when patriot forces defeated the Spanish colonial army on the south-east slopes of this volcano. The engagement, known as the Battle of Pichincha, secured the independence of the territories of present-day Ecuador.
The most recent significant eruption was in August 1998. On March 12, 2000, a phreatic eruption killed two volcanologists who were working on the lava dome.

The artist

Friedrich Wilhelm Heinrich Alexander von Humboldt was a Prussian geographer, naturalist, explorer, and influential proponent of Romantic philosophy and science. He was the younger brother of the Prussian minister, philosopher, and linguist Wilhelm von Humboldt (1767–1835). Humboldt's quantitative work on botanical geography laid the foundation for the field of biogeography. Humboldt's advocacy of long-term systematic geophysical measurement laid the foundation for modern geomagnetic and meteorological monitoring.

Between 1799 and 1804, Humboldt travelled extensively in Latin America, exploring and describing it for the first time from a modern scientific point of view. His description of the journey was written up and published in an enormous set of volumes over 21 years. Humboldt was one of the first people to propose that the lands bordering the Atlantic Ocean were once joined (South America and Africa in particular). Humboldt resurrected the use of the word cosmos from the ancient Greek and assigned it to his multi-volume treatise, Kosmos, in which he sought to unify diverse branches of scientific knowledge and culture. This important work also motivated a holistic perception of the universe as one interacting entity.

On their way back to Europe from Mexico on their way to the United States, Humboldt and his fellow scientist Aimé Bonpland stopped in Cuba for a While. After their first stay in Cuba of three months they returned the mainland at Cartagena de Indias (now in Colombia), a major center of trade in northern South America. Ascending the swollen stream of the Magdalena River to Honda and arrived in Bogotá on July 6, 1801 where they met Spanish botanist José Celestino Mutis, the head of the Royal Botanical Expedition to New Granada, staying there until September 8, 1801. Mutis was generous with his time and gave Humboldt access to the huge pictorial record he had compiled since 1783.  Humboldt had hopes of connecting with the French sailing expedition of Baudin, now finally underway, so Bonpland and Humboldt hurried to Ecuador. They crossed the frozen ridges of the Cordillera Real, they reached Quito on 6 January 1802, after a tedious and difficult journey.

Their stay in Ecuador was marked by the ascent of Pichincha (above)  and their climb of Chimborazo, where Humboldt and his party reached an altitude of 19,286 feet (5,878 m). This was a world record at the time, but a thousand feet short of the summit.  Humboldt's journey concluded with an expedition to the sources of the Amazon en route for Lima, Peru.

At Callao, the main port for Peru, Humboldt observed the transit of Mercury. On 9 November and studied the fertilizing properties of guano, rich in nitrogen, the subsequent introduction of which into Europe was due mainly to his writings.

EL CHIMBORAZO PAINTED BY FRIEDRICH WEITSCH

 FRIEDRICH GEORG WEITSCH (1758-1828)

Chimborazo  (6,263.47m - 20,549.4 ft)

Ecuador

 In Alexander von  Humboldt and Aimé Bonpland at the foot of  the volcano Chimborazo during their American Expedition, 1806, oil on canvas. 

Braunschweigisches Landesmuseum, Germany.

The mountain

Chimborazo  (6,263 m -20,548 ft) is a currently inactive stratovolcano in the Cordillera Occidental range of the Andes ans the highest mountain in Ecuador and the Andes north of Peru ; it is higher than any more northerly summit in the Americas. Chimborazo is not the highest mountain by elevation above sea level, but its location along the equatorial bulge makes its summit the farthest point on the Earth's surface from the Earth's center.

Chimborazo is at the main end of the Ecuadorian Volcanic Arc, north west of the town of Riobamba. Chimborazo is in la Avenida de los Volcanes (the Avenue of Volcanoes) west of the Sanancajas mountain chain. Carihuairazo, Tungurahua, Tulabug, and El Altar are all mountains that neighbor Chimborazo.  The closest mountain peak, Carihuairazo, is 5.8 mi (9.3 km) from Chimborazo. There are many microclimates near Chimborazo, varying from desert in the Arenal to the humid mountains in the Abraspungo valley. Its last known eruption is believed to have occurred around A.D. 550. 

Until the beginning of the19th century, it was thought that Chimborazo was the highest mountain on Earth (measured from sea level), and such reputation led to many attempts on its summit during the 17th and 18th centuries.

In 1746, the volcano was explored by French academicians from the  French Geodesic Mission. Their mission was to determine the sphericity of the Earth. Their work along with another team in Lapland established that the Earth was an oblate spheroid rather than a true sphere. They did not reach the summit of Chimborazo.

In 1802, during his expedition to South America, Baron Alexander von Humboldt (on left in the painting above)  accompanied by Aimé Bonpland (on right in the painting above) and the Ecuadorian Carlos Montufar (on left with Humboldt  in the painting above), tried to reach the summit. From his description of the mountain, it seems that before he and his companions had to return suffering from altitude sickness they reached a point at 5,875 m, higher than previously attained by any European in recorded history. (Incas had reached much higher altitudes previously). In 1831, Jean-Baptiste Boussingault and Colonel Hall reached a new "highest point", estimated to be 6,006 m.

The painter 
Friedrich Georg Weitsch was a German painter and etcher. Weitsch began his artistic training with his father, "Pascha" Johann Friedrich Weitsch (1723–1803). He attended the Kunstakademie Düsseldorf. After traveling to Amsterdam and Italy between 1784 and 1787, he returned home and became court painter to Charles William Ferdinand, Duke of Brunswick.  In 1794 he became a member of the Berlin Academy of Art and became its director in 1798 (succeeding Bernhard Rode).  His work included landscapes, history and religious painting, and portraits of royal and civil authorities—the latter showing the influence of Anton Graff.  Some are held at the Herzog Anton Ulrich Museum, the Städtisches Museum, and the Braunschweigisches Landesmuseum, all in Braunschweig.  He painted the very famous painting of the Chimborazo (above) featuring the portrait of Alexander von Humboldt with  landscape he imagined as well as the  portrait ofAimé Bonpland and Carlos Montufarin Ecuador, he never saw.

EL TUNGURAHUA & EL COTOPAXI PAINTED BY FREDERIC-EDWIN CHURCH

FREDERIC EDWIN CHURCH  (1826-1900) 

Cotopaxi  (5, 897 m - 19, 347 ft)

Tungurahua (5, 023 m - 16, 460 ft)  

Ecuador

In The Andes of Ecuador, oil on canvas, c.1855, Reynolda House, Winston Salem (North Carolina)

About this painting 

“Painted after Frederic Edwin Church’s first trip to Ecuador in 1853, The Andes of Ecuador combines the scientific and religious concerns of Church’s time in one grand panorama. The infinite botanical detail, the terrifying depths of the abyss, and the overwhelming sense of unlimited space combine to communicate a powerful sense of the sublime.”  The painting encourages both distanced and close viewing through a dramatic sweeping vista that contains several small vignettes and seemingly endless details. Two figures in the left foreground pray in front of an archaic stone cross, colorful birds flocking in a palm tree above them. This scene is balanced on the right by cascades of water and a small lake. Snow-capped peaks in the background—Tungurahua on the  right and the cone of Cotopaxi in the mist on the left—frame the distant view. The white-hot light of a centrally placed sun permeates a warm palette of sienna browns and lush greens.

Church depicted various plant and animal species with exactness while imbuing the painting with an explicit Christian iconography, mirroring contemporary thinking about science and religion. Through his overt allusions to Christianity within the Ecuadorian landscape, “Church was intimating that Americans inhabited a new Eden, a new promised land, and in standing before this sublime grandeur one enjoyed the metaphoric presence of Genesis.”  From the llamas grazing in the center foreground to the distant snowy peaks, the multiple ecosystems correspond to Alexander Von Humboldt’s belief in the harmony of nature in which biology, botany, and geology coalesce to determine vegetation. His theories were popular with artists of the nineteenth century, who saw in them a way to reconcile God’s divinity with scientific advancements. In the Cotopaxi region of Ecuador both Humboldt and Church found in one locale perennial summers—the tropics—juxtaposed with ice-covered volcanic mountains.

A critic writing for The Crayon in 1855 acclaimed the canvas Church’s “most important work yet,” and a student recalled how he painted “with a rapidity and precision which were simply inconceivable by one who had not seen him at work.”  In addition, The Andes of Ecuador is an early masterpiece of Luminism, a style prevalent in the late nineteenth century that consisted of radiant, light-filled quiet vistas.

 *Description note  from the  Reynolda House, Museum of American Art 

The mountains 

Cotopaxi  (5, 897 m - 19, 347 ft) (on left in the mist in this painting) is an active stratovolcano in the Andes Mountains. It  is located in the Latacunga canton of Cotopaxi Province, about 50 km (31 mi) south of Quito, and 33 km (21 mi) northeast of the city of Latacunga, Ecuador, in South America.  It is the second highest summit in Ecuador. It is one of the world's highest volcanoes. Many sources claim that Cotopaxi means "Neck of the Moon" in an indigenous language, but this is unproven. The mountain was honored as a "Sacred Mountain" by local Andean people, even prior to the Inca invasion in the 15th century. Most of the time, Cotopaxi is clearly visible on the skyline from Quito and is part of the chain of volcanoes around the Pacific plate known as the Pacific Ring of Fire. 

Tungurahua (5, 023 m - 16, 460 ft)   meaning "Throat of Fire" from Panzaleo, is an active stratovolcano located in the Cordillera Oriental of Ecuador. The volcano gives its name to the province of Tungurahua. Volcanic activity restarted on August 19, 1999, and is ongoing as of 2013, with several major eruptions since then, the last starting on 1 February 2014. It is located 140 kilometres (87 mi) south of the capital Quito. Nearby notable mountains are Chimborazo (6,310 m - 20,700 ft) and El Altar (5,319 m -17,451 ft). It rises above the small thermal springs town of Baños de Agua Santa (1,800 m -5,900 ft) which is located at its foot 8 kilometres (5.0 mi) to the north. Tungurahua is part of the Sangay National Park. Tungurahua's top is snow-covered and did feature a small summit glacier which melted away after the increase of volcanic activity in 1999.

During their seven-year-long South America expedition (1868 to 1876), the German volcanologists Alphons Stübel and Wilhelm Reiss climbed Cotopaxi (Reiss with Angel Escobar; 28 November 1872) and Tungurahua (Stübel with Eusebio Rodríguez; 9 February 1873).

The Painter 

The second generation of the Hudson River School took landscape painting to a new level. Foremost among them was Frederic Edwin Church (1826–1900), who expanded the size and grandeur of his canvases and broadened their scope by traveling far afield. His adventurous spirit led him from the high peaks of the Andes to the icebergs of Newfoundland. His skills as an artist and showman complemented his dramatic compositions and spectacular use of light and color. The resulting paintings appealed to the expansionist, scientific, and religious sensibilities at mid-century and remain nationalistic icons of America and her art.

Born in Hartford, Connecticut, to a well-off family, Church’s artistic prowess was nurtured at an early age. From 1844–1846 he was a student of Thomas Cole, the premier painter of American landscape, in Catskill, New York. During his time with Cole, Church honed his painting skills through close observation of nature, sketching the quintessential American landscape, the Hudson River Valley.

 In his Book of the Artists, Henry Tuckerman said of Church: “His great attribute is skill; he goes to nature, not so much with the tenderness of a lover or the awe of a worshipper, as with the determination, the intelligence, the patient intrepidity of a student; he is keenly on the watch for facts, and resolute in their transfer to art.” 

After Cole’s sudden death in 1848, Church assumed his mentor’s place as a leading figure of the Hudson River School. That same year he was elected the youngest associate of the National Academy of Design, and the following year he earned the rank of academician.

As important as Cole was to Church’s technical development, the work of scientist-explorer Alexander Von Humboldt (1769–1859) was equally influential in Church’s evolution as a painter. Humboldt published the two-volume text Cosmos in the 1840s, in which he identified unifying principles within the incredible complexity of the world’s environments. His theories lent themselves to romantic interpretation and became popular with artists of the mid-nineteenth century as they grappled with the confluence of divinity and science.

Church answered Humboldt’s call to artists to depict the grand and diverse beauty of nature; he traced the explorer’s steps through Ecuador on two separate trips in 1853 and 1857. The artist sketched the complex ecosystems he encountered and his final canvases merged scientific precisionism with Judeo-Christian themes. Church painted his South American canvases on a large scale in his studio and then exploited the spectacular subject matter through elaborate displays.  His Heart of the Andes, 1859, Metropolitan Museum of Art, was hung behind a red velvet curtain and capped by portraits of great American presidents. For twenty-five cents each, the public was admitted entry to Church’s premises in the Tenth Street Studio Building to view the exhibit. The painting created a sensation and that same year sold for the record-breaking price of $10,000. During his career Church painted sixteen major works derived from his travels in South America.

While Church found success with these subjects, still the majority of his works explored the majesty of American terrain. Niagara Falls, 1857, Corcoran Gallery of Art, and Twilight in the Wilderness, 1860, Cleveland Museum of Art, celebrate the glories of America at a time of growing sectional strife. His dramatic The Icebergs, 1861, Dallas Museum of Art, was inspired by an unsuccessful expedition to find the Northwest Passage. When it was unveiled it failed to find a buyer, an early indication, perhaps, of a shift of taste away from grandiose conceptions.

Church and his work influenced subsequent painters of American landscape; he taught Louis Rémy Mignot who traveled with him to Ecuador, and his radiant treatment of light inspired the luminist painters of the later nineteenth century.  Following an extended trip abroad, Church commissioned the architect Calvert Vaux to build Olana, a Persian-inspired villa located on a high bluff overlooking the Hudson River. Church designed stencils, selected wall colors, and furnished Olana with an eclectic array of objets d’art and furniture. Toward the end of his life, Church retired to Olana, just as enthusiasm for his kind of grand statement was fading.

 * Bio note  from the  Reynolda House, Museum of American Art 

CATHEDRAL MOUNT PAINTED BY EUGENE VON GUERARD

EUGENE VON GUERARD (1811-1901)

Cathedral Mount  (1,241 m - 4,072 ft)

Australia (Victoria) 

The mountain
The Cathedral Range (1,241 m - 4,072 ft)  not to be confused with Cathedral Mountain (Tasmania) is a mountain range that is part of the Great Dividing Range in Victoria, Australia, located in Cathedral Range State Park. The range is formed from a 7 kilometres (4.3 mi) ridge of upturned sedimentary rock, consisting mainly of sandstone, mudstone and conglomerates of the Devonian Period. This has given the range steep sides, and a narrow razorback ridge. The plateau on the eastern boundary of the park continues to the nearby Lake Mountain cross country ski area. Much of the park was burnt in the Black Saturday bushfires.

The painter 
Johann Joseph Eugene von Guerard was an Austrian-born artist, active in Australia from 1852 to 1882. Known for his finely detailed landscapes in the tradition of the Düsseldorf school of painting, he is represented in Australia's major public galleries, and is referred to in the country as Eugene von Guerard. In 1852 von Guerard arrived in Victoria, Australia, determined to try his luck on the Victorian goldfields. As a gold-digger he was not very successful, but he did produce a large number of intimate studies of goldfields life, quite different from the deliberately awe-inspiring landscapes for which he was later to become famous. Realizing that there were opportunities for an artist in Australia, he abandoned the diggings and was soon undertaking commissions recording the dwellings and properties of wealthy pastoralists.
By the early 1860s, von Guerard was recognized as the foremost landscape artist in the colonies, touring Southeast Australia and New Zealand in pursuit of the sublime and the picturesque.  He is most known for the wilderness paintings produced during this time, which are remarkable for their shadowy lighting and fastidious detail.  Indeed, his View of Tower Hill in south-western Victoria was used as a botanical template over a century later when the land, which had been laid waste and polluted by agriculture, was systematically reclaimed, forested with native flora and made a state park. The scientific accuracy of such work has led to a reassessment of von Guerard's approach to wilderness painting, and some historians believe it likely that the landscapist was strongly influenced by the environmental theories of the leading scientist Alexander von Humboldt. Others attribute his 'truthful representation' of nature to the criterion for figure and landscape painting set by the Düsseldorf Academy.
In 1866 his Valley of the Mitta Mitta was presented to the National Gallery of Victoria in Melbourne; in 1870 the trustees purchased his Mount Kosciusko shown in this article was titled "Northeast view from the northern top of Mount Kosciusko", which is actually  "from Mount Townsend".
In 2006, the City of Greater Geelong purchased his 1856 painting View of Geelong for A$3.8M. His painting, Yalla-y-Poora, is in the Joseph Brown Collection on display at the National Gallery of Victoria.  The State Library of New South Wales in Sydney holds an extensive collection of working sketchbooks by Eugene von Guerard, as well as larger drawings and paintings and a diary. The sketchbooks cover regions as diverse as Italy and Germany, Tasmania, New South Wales, and of course, Victoria.
In 1870 von Guerard was appointed the first Master of the School of Painting at the National Gallery of Victoria, where he was to influence the training of artists for the next 11 years. His reputation, high at the beginning of this period, had faded somewhat towards the end because of his rigid adherence to picturesque subject matter and detailed treatment in the face of the rise of the more intimate Heidelberg School style. Amongst his pupils were Frederick McCubbin and Tom Roberts. Von Guerard retired from his position at the National Gallery School the end of 1881 and departed for Europe in January 1882. In 1891 his wife died. Two years later, he lost his investments in the Australian bank crash and he lived in poverty until his death in Chelsea, London, on 17 April 1901.
Several paintings of mountains of Australia and New Zealand by Eugène von Guerard are published in this blog....
Sources: 
- Dictionnary of Australian Artists, Oxford University Press, 1992
- Wikipedia Eugene Von Guerard page