In the eastern range are Cayambe, Antisana, and Cotopaxi (19,500 feet).
It is a singular fact that cattle have followed men over the whole earth, from the coast of Africa to the highlands of Antisana.
Antisana is crowned with a double dome, and is described as an extinct volcano, though Humboldt saw smoke issuing from it in 1802.
There is plenty of room on the summit of Antisana for a cone as great as that of Cotopaxi.
The farm at Antisana, where Humboldt lived for some time, has sunk 165 feet in sixty-four years.
Sara-Urcu stands south-east of Antisana in a densely forested region, drenched with rain and only slightly explored.
The extinct volcanoes of Cayamba, Antisana, and Chimborazo are the most important.