The PN of Yosemite situates to roughly 320 km to the east of San Francisco, in California and is one of the emblematic places of the montañismo American.
The park covers an area of 3.081 km² and extends through the oriental slopes of the mountainous chain of Sierra Nevada (United States). It is visited by more than 3 million people every year, and the big majority only visits the part of the valley Yosemite. It was designated World-wide Heritage of the Mankind in 1984 and is recognised internationally by his cliffs of granite, jumps of water, crystalline rivers, forests of sequoias giant and the big biological diversity (near of 95% of the area of the park is designated wild zone). It was the first willing park by the federal government of the United States and through the work of people like John Muir was a notable point in the development of the idea of national parks.
Yosemite Is one of the biggest habitats and less fragmentado in Sierra Nevada, and possesses a big diversity of plants and animal. The park has in average an elevation of 600 to 4000 metres and contains five main zones of vegetation: area boscosa of oaks, vegetation of low mountain, vegetation of high mountain, subalpine vegetation and alpine vegetation. Of the 7.000 species of plants of California, near of 50% find in Sierra Nevada, and more than 20% inside the Park Yosemite.
The geological training of the area is of rocks of granite and remainders of rocks more ancient. It does roughly 10 million years backwards, Saw Nevada suffered an elevation and afterwards was bent until forming the relatively soft slopes west and the most pronounced slopes east. The elevation stressed the degree of inclination of the rivers and brooks, forming narrow and deep cannons. One million years ago backwards, the snow and the ice accumulated forming glaciers in the alpine meadows higher and moved downwards the valleys of the rivers. The downward movement of the mass of ice cut and esculpió the valley in shape of Or that attracts nowadays to big quantity of visitors by his particular landscape.
It possesses more than 1.300 km of marked footpaths by which can walk . They exist 5 very differentiated sections for the visitors:
– Yosemite Valley
– Wawona/Butterfly Grove/ Glacier Point,
– Tuolumne Meadows,
– Hetch Hetchy,
– Crane Flat/White Wolf.