Cerro Arenales
Encyclopedia
Cerro Arenales is a heavily ice-covered stratovolcano
Stratovolcano
A stratovolcano, also known as a composite volcano, is a tall, conical volcano built up by many layers of hardened lava, tephra, pumice, and volcanic ash. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile and periodic, explosive eruptions...

 located in the Aisén Region of Chile
Chile
Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

, within Laguna San Rafael National Park
Laguna San Rafael National Park
Laguna San Rafael National Park is a park located on the Pacific coast of southern Chile. The park is named for the San Rafael Lagoon formed by the retreat of the San Rafael Glacier. Created in 1959, it covers an area of and includes the Northern Patagonian Ice Field...

. It towers over the southern part of the Northern Patagonian Ice Field
Northern Patagonian Ice Field
The Northern Patagonian Ice Field, located in southern Chile, is the smaller of two remnant parts in which the Patagonian Ice Sheet in the Andes Mountains of lower South America can be divided. It is completely contained within the boundaries of Laguna San Rafael National Park...

.

The first ascent of Cerro Arenales was made in 1958 by a Japanese-Chilean expedition, headed by Professor Tanaka. In December 1963 an expedition led by Eric Shipton
Eric Shipton
Eric Earle Shipton CBE was a distinguished British Himalayan mountaineer.-Early years:Born in Ceylon in 1907 where his father, a tea planter, died before he was three years old. His mother buried her grief by taking Eric and his sister Marge and travelling constantly for the next five years...

, crossed the NPIF heading southeast from Laguna San Rafael to Río de la Colonia and accomplished on the way the second ascent.
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