Cordillera del Paine

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This article is about the mountain range. For the national park in Chile, see Torres del Paine National Park. For the Chilean commune, see Torres del Paine, Chile.
Cordillera del Paine
Cuernos del Paine 2011.jpg
Torres del Paine, Chile
Highest point
Peak Cerro Paine Grande
Elevation 2,884 m (9,462 ft)
Coordinates 50°59′56″S 73°05′43″W / 50.99889°S 73.09528°W / -50.99889; -73.09528
Geography
Cordillera del Paine annotated.jpg
NASA image with annotations.
Country Chile
State/Province Magallanes and Antártica Chilena
Range coordinates 51°S 73°W / 51°S 73°W / -51; -73Coordinates: 51°S 73°W / 51°S 73°W / -51; -73
Parent range Patagonian Andes
Geology
Period 12 Myr
Type of rock Granite

The Cordillera del Paine is a small mountain group in Torres del Paine National Park in Chilean Patagonia. It is located 280 km (170 mi) north of Punta Arenas, and about 1,960 km south of the Chilean capital Santiago. It belongs to the Commune of Torres del Paine in Última Esperanza Province of Magallanes and Antártica Chilena Region. No accurate surveys have been published, and published elevations have been claimed to be seriously inflated, so most of the elevations given on this page are approximate.[1]

Peaks[edit]

The highest summit of the range is Cerro Paine Grande, at 50°59′56″S 73°05′43″W / 50.99889°S 73.09528°W / -50.99889; -73.09528. For a long time its elevation was claimed to be 3,050 m, but in August 2011 it was ascended for the third time and found to be 2,884 m.[2]

The best-known and most spectacular summits are the three Towers of Paine (Spanish: Torres del Paine, 50°57′09″S 72°59′23″W / 50.95250°S 72.98972°W / -50.95250; -72.98972). They are gigantic granite monoliths shaped by the forces of glacial ice.

The South Tower of Paine (about 2,500 m, at 50°57′33″S 72°59′42″W / 50.95917°S 72.99500°W / -50.95917; -72.99500) is now thought to be the highest of the three, although this has not been definitely established. It was first climbed by Armando Aste.

The Central Tower of Paine (about 2,460 m or 8,100 feet) was first climbed in 1963 by Chris Bonington and Don Whillans, and the North Tower of Paine (about 2,260 m) was first climbed by Guido Monzino.

Other summits include the Cuerno Principal, about 2,100 m but often quoted at 2,600 m,[citation needed] and Cerro Paine Chico, which is usually correctly quoted at about 2,650 m.[citation needed]

Geology[edit]

Towers of Paine.

The range is made up of a granitic laccolith and the sedimentary rocks it intrudes, deeply eroded by glaciers. The steep, light colored faces are eroded from the tougher, vertically jointed granitic rocks, while the foothills and dark cap rocks are the sedimentary country rock, in this case flysch deposited in the Cretaceous and later folded.[3]

The radiometric age for the quartz diorite at Cerro Paine is 12 ± 2 million years by the rubidium-strontium method and 13 ± 1 million years by the potassium-argon method.[4] More precise ages of 12.59 ± 0.02 and 12.50 ± 0.02 million years for the earliest and latest identified phases of the intrusion, respectively, were achieved using U/Pb methods on single zircon crystals.[5]

Hiking[edit]

The Torres del Paine National Park—an area of 2,400 km²—was declared a Biosphere Reserve by the UNESCO in 1978 and is a popular hiking destination. There are clearly marked and well maintained paths and many refugios which provide shelter and basic services.

Hikers can opt for a day trip to see the towers, walk the popular "W" route in about five days, or trek the full circle in 8–9 days.

The "W" route is by far the most popular, and is named for the shape of the route. Hikers start and finish at either of the base points of the "W", performing each of the three shoots as a day trip. The five points of the W, from west to east, are:

  • Glacier Grey, a large glacier calving into the lake of the same name. Camping is available next to Refugio Grey.
  • Refugio Pehoe, situated on Lago Pehoe. This site offers good views of the "horns" of Torres del Paine.
  • Valle del Francés ("Frenchman's Valley"), often rated as the best scenery in the whole park. The path leads up into a snowy dead-end, where several small glaciers are visible.
  • Hosteria las Torres, a large hotel at the base of the mountain range.
  • The Torres del Paine themselves, large rock formations over a small lake, high in the mountains.

The longer "circuit" walk includes all the sights of the "W", but avoids most backtracking, by connecting Glacier Grey and the Torres del Paine around the back of the mountain range.

Boats and buses provide transport between Hosteria las Torres, Refugio Pehoe, and the park entrance at Laguna Amarga.

It is a national park and thus hikers are not allowed to stray from the paths. Camping is only allowed at specified campsites, and wood fires are prohibited in the whole park.

The Paine "horns," with the typical extreme weather of the region

References[edit]

  1. ^ Biggar, John, 2005. The Andes: A Guide for Climbers (3rd edition, ISBN 0-9536087-2-7). Several elevations given by this authority are much lower than those given by other authorities, and the higher elevations are not supported by official Chilean IGM maps.
  2. ^ http://andesgear.expenews.com/en/expeditions/197/dispatches/2900 2011 Expedition
  3. ^ http://www.scielo.cl/scielo.php?pid=S0716-02082003000100005&script=sci_arttext
  4. ^ Martin Halpern "Regional Geochronology of Chile South of 50 degrees Latitude", Bulletin Geological Society of America, v. 84, p. 2410, 1973.
  5. ^ Juergen Michel, Lukas Baumgartner, Benita Putlitz, Urs Schaltegger and Maria Ovtcharova, Incremental growth of the Patagonian Torres del Paine Laccolith over 90 k.y., Geology, 36(6):459-462, 2008.
  • Biggar, John, 2005. The Andes: A Guide for Climbers (3rd edition, ISBN 0-9536087-2-7).
  • Kearney, Alan, 1993. Mountaineering in Patagonia. Seattle USA: Cloudcap.

External links[edit]