Pasochoa volcano

Pasochoa

Pasochoa (4.200 metres) is an extinct volcano located in the Guayllabamba river basin in the Ecuadorean Andes. The current mountain form is a collapsed crater with a semicircular shape. This structure emerged approximately 100 thousand years ago due to an eruption which destroyed the crater and occidental slope of the previous volcanic cone.

• http://en.wikipedia.org/wiki/Pasochoa