Yosemite National Park Yosemite National Park Yosemite National Park (, ) is an American national park located in the western Sierra Nevada of Central California, bounded on the southeast by Sierra National Forest and on the northwest by Stanislaus National Forest. The park, which is managed by the National Park Service, covers an area of and sits in four counties: centered in Tuolumne and Mariposa, extending north and east to Mono and south to Madera County. Designated a World Heritage site in 1984, Yosemite is internationally recognized for its granite cliffs, waterfalls, clear streams, giant sequoia groves, lakes, mountains, meadows, glaciers, and biological
Yosemite National Park U.S. Congress authorized the O'Shaughnessy Dam through passage of the Raker Act. In the late 1920s a bid for Yosemite for the 1932 Winter Olympics was put forward. Ultimately, the 1932 Winter Olympics were awarded to Lake Placid, New York. In 1937, conservationist Rosalie Edge, head of the Emergency Conservation Committee (ECC), successfully lobbied Congress to purchase about 8,000 acres of old-growth sugar pines on the perimeter of Yosemite National Park that were to be logged. More recently, preservationists persuaded Congress to designate , or about 89% of the park, as the Yosemite Wilderness—a highly protected wilderness area. The Park