Monte San Valentin
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|Monte San Valentin|
San Valentin as seen from the shore of Lake General Carrera
|Elevation||4,058 m (13,314 ft) |
|Prominence||3,696 m (12,126 ft) 
|Isolation||1,132 kilometres (703 mi)|
|Easiest route||major snow and ice climb|
Monte San Valentin, also known as Monte San Clemente, is the highest mountain in Chilean Patagonia and the highest mountain south of 37°S outside Antarctica. It stands at the north end of the North Patagonian Icefield.
Monte San Valentin can be climbed from Lago Leones, to the south east, or from Laguna San Rafael, to the west. The ascent is long and is particularly subject to bad weather. The accident and fatality rate is high.
There is some confusion about the elevation. It was originally estimated at 3,876m by Nordenskjold in 1921 but later thought to be 4,058m. The latter is the most commonly quoted elevation and is quoted here. A French group that climbed the San Valentin in 1993 included two surveyors, who calculated an elevation of 4,080±20 m by using a GPS. In 2001 a Chilean group measured 4,070±40 m, also using GPS. SRTM and ASTER GDEM data also support an elevation in excess of 4,000 metres. However, Chilean IGM mapping gives only 3,910 metres. ChIGM maps are usually accurate and reliable, but the summit is uniformly white, which may have created problems for the cartographers.
- List of mountains in the Andes
- Laguna San Rafael National Park
- Mount Hudson
- Cerro Castillo
- Cerro Arenales
- List of Ultras of South America
- ""Argentina and Chile, Southern: Patagonia Ultra-Prominences" Peaklist.org. Retrieved 2011-11-20.
- Although Monte San Valentin is often referred to as the highest mountain in all of Patagonia, Argentine Patagonia also comprises Neuquén Province, which includes Domuyo (4,709m).
- John Biggar, The Andes, A Guide for Climbers, Andes, 3rd edition, 2005, ISBN 0-9536087-2-7
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