Yosemite National Park

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Chief Tenaya by Sculptor Sal Maccarone carved in 1990
Lucy Telles basket
Eadweard Muybridge - Pi-Wi-Ack (Shower of Stars), Vernal Fall, 400 Feet, Valley of Yosemite - Google Art Project
View of Tutocanula Pass Yosemite California by Carleton Watkins
O'Shaughnessy Dam
Yosemite National Park Map

Yosemite National Park is a United States National Park spanning eastern portions of Tuolumne, Mariposa, and Madera counties in the central eastern part of the state of California. The park, which is managed by the National Park Service, covers an area of approximately 748,436 acres (1,169 sq mi; 3,029 km^2) and reaches across the western slopes of the Sierra Nevada mountain chain. Over 4 million visitors travel to Yosemite each year to witness its spectacular granite cliffs, clear streams, waterfalls, giant sequoia trees, lakes, mountains, meadows, glaciers, and biological diversity.

History[edit | edit source]

Yosemite's natural beauty was recognized early by indigenous people, and later by European Americans, leading to its designation as a National Park in 1890, thanks to efforts by conservationists like John Muir. Muir was instrumental in the development of Yosemite's park status, emphasizing the need for preservation of its wilderness, a concept that contributed significantly to the national park idea.

Geography[edit | edit source]

Yosemite National Park is best known for its waterfalls, but within its nearly 1,200 square miles, it features deep valleys, grand meadows, ancient giant sequoias, a vast wilderness area, and much more. The park is divided into five main sections: the Yosemite Valley, the Mariposa Grove of Giant Sequoias, the Tuolumne Meadows, the Wawona area, and the Hetch Hetchy Reservoir.

Biodiversity[edit | edit source]

Yosemite is home to over 400 species of vertebrates including fish, amphibians, reptiles, birds, and mammals. The park's rich biodiversity is a reflection of the varied habitats found within its boundaries, from lush meadow to dense forest, and rugged mountain peak.

Recreation[edit | edit source]

Activities in Yosemite National Park are varied and include hiking, rock climbing, skiing and snowshoeing in winter, and viewing the breathtaking scenery and wildlife. The park has over 800 miles of trails, ranging from easy strolls to challenging wilderness treks. Yosemite Valley, with its iconic landmarks such as El Capitan, Half Dome, and Yosemite Falls, is the center of visitor activities.

Conservation[edit | edit source]

The park faces several environmental challenges, including air and water pollution, habitat destruction, and the impacts of climate change. Efforts are ongoing to restore damaged areas, protect wildlife, and reduce human impact. The Yosemite Conservancy is a key organization involved in these conservation efforts.

Administration[edit | edit source]

Yosemite National Park is administered by the National Park Service, which works to preserve the natural and cultural resources for the enjoyment, education, and inspiration of this and future generations. The park's management practices are guided by the principles of conservation, with a focus on protecting its resources while accommodating visitors.

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Contributors: Prab R. Tumpati, MD