Olan (mountain)
Encyclopedia
The Olan (3564 m) is a mountain
Mountain
Image:Himalaya_annotated.jpg|thumb|right|The Himalayan mountain range with Mount Everestrect 58 14 160 49 Chomo Lonzorect 200 28 335 52 Makalurect 378 24 566 45 Mount Everestrect 188 581 920 656 Tibetan Plateaurect 250 406 340 427 Rong River...

 in the Massif des Écrins
Massif des Écrins
The mountains of the Massif des Écrins form the core of the Écrins National Park in France.-Mountains:*Barre des Écrins 4102 m*La Meije 3983 m*Ailefroide 3954 m*Mont Pelvoux 3946 m*Pic Sans Nom 3913 m*Pic Gaspard 3883 m*Le Râteau 3809 m...

 in the French
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

 Alps
Alps
The Alps is one of the great mountain range systems of Europe, stretching from Austria and Slovenia in the east through Italy, Switzerland, Liechtenstein and Germany to France in the west....

. It dominates the valleys of Valgaudemar, Valjouffrey, and Vénéon in the heart of Écrins National Park
Écrins National Park
Écrins National Park is one of the nine French national parks. It is located in the south-eastern part of France and consists in a mountainous region of the Dauphiné Alps, south of Grenoble and north of Gap, shared between the départements of Isère and Hautes-Alpes.It rises up to 4,102 m at the...

.

Climbing

The first ascent of the mountain was made by Pierre Gaspard (father), Ch. Roderon and A. Cust in August 1880.

The great classical routes of the Olan are difficult, and the poor quality of the rock makes the climbing quite dangerous. Routes on the north-west side, from the Font-Turbat refuge, include: north ridge (AD), Couzy
Jean Couzy
Jean Couzy was a French mountaineer. He studied aeronautical engineering at the École Polytechnique. At age 27, he was a member of Maurice Herzog's 1950 expedition to Annapurna. Prior to this, his usual climbing partner was Marcel Schatz, another member of the expedition...

-Desmaison (ED), Devies-Gervasutti (TD), and the Candau ridge (D). http://fcorpet.free.fr/Denis/Olan.html. On the south-west face is the 'Pilier Nounours' (Teddy Bear pillar, TD), a modern route that was well equipped with bolts by J-M. Cambon.

Geology

The Olan is made of a granite
Granite
Granite is a common and widely occurring type of intrusive, felsic, igneous rock. Granite usually has a medium- to coarse-grained texture. Occasionally some individual crystals are larger than the groundmass, in which case the texture is known as porphyritic. A granitic rock with a porphyritic...

 base, with a gneiss
Gneiss
Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either igneous or sedimentary rocks.-Etymology:...

"hat" (see photos on http://www.geol-alp.com/h_oisans/_lieux/valgau_champo/olan.html).

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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