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Mount Carihuairazo (also Carihuayrazo) is a volcanic caldera neighboured by Ecuador's highest mountain Chimborazo.



Carihuairazo is located in the Cordillera Occidental of the Andes of central Ecuador, 150 km (93 miles) south-southwest of the capital Quito. Its neighboured by 6,267 m high Chimborazo. The nearest cities are Riobamba , Ambato and Guaranda . Carihuairazo's 1.5 km wide heavy eroded caldera opens to the east.

The Carihuairazo forms part of the "Reserva de Produccion Faunistica Chimborazo" which forms a protected ecosystem to preserve the habitat for the andens native camelids Vicuna, Llama and Alpaca.


Carihuairazo's Glacier has lost an important part of its mass during the last decade as a result of global warming and ash covers caused by the recent volcanic activity of its eastern neighbour Tungurahua.


Carihuairazo must have been a Volcano of similar dimensions to its neighbour Chimborazo before explosions during the last period of activity destroyed the mass of the peak, leaving today's caldera. There is no evidence of historic activity and Carihuayrazo is considered inactive.



An interpretation of its name is that it's a combination of the Quichua words Cari (man), huay (wind) and razu (Ice/Snow) (Schmudlach 2001). Local Indian mythology narrates that Carihuairazo and El Altar which are both volcanic calderas have been destroyed by Taita (Father) Chimborazo fighting for the grace of Mama Tungurahua.

First Ascent

Carihuayrazo was climbed by Edward Whymper and the brothers Louis and Jean-Antoine Carrel during their 1880 Ecuador expedition. It is not entirely clear out of Whymper's descriptions but it is believed that they climbed the Mocha and not the Maxima summit . The first ascent to the Maxima summit is attributed to Arturo Eichler, Horacio Lopez Uribe and Jean Morawiecki in 1951 (Neate 1994).


Due to the glacier retreat and its consequences climbing Carihuairazo has shifted from a PD glacier route with some rock scrambling to a AD route with a technical climb to the summit tower .

Carihuairazo can be climbed year round with best seasons being December-January and July-August.

A good height acclimatization is highly recommended for this climb.

The mountain is contained on the IGM (Instituto Geografico Militar) 1:50000 Map Chimborazo (CT-NIV-C1) .


The normal route to Carihuairazo Maxima starts from a camping spot at ~4,600m, reaching the main ridge either via the SW-ridge or from West via the glacier, followed by a difficult technical climb to reach the summit tower.

See also

List of volcanoes in Ecuador

External links

Mountaineering information for Carihuairazo

Official page of the protected area "Reserva de Produccion Faunistica Chimborazo" (Spanish)

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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article Carihuairazo

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