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The Hetch Hetchy Valley began as a V-shaped river canyon cut out by the ancestral Tuolumne River. About one million years ago, the extensive Sherwin glaciation widened, deepened and straightened river valleys along the western slope of the Sierra Nevada, including Hetch Hetchy, Yosemite Valley, and Kings Canyon farther to the south. [12]
Download as PDF; Printable version; ... Hetch Hetchy Dome is a granite dome, ... A topographic map of the area; Some history, of Hetch Hetchy Valley;
He also wrote hundreds of magazine and newspaper articles, essays, and books advocating for the preservation of American wilderness, such as preventing Yosemite National Park's Hetch Hetchy Valley from being dammed. Though he died before its founding, Muir is often credited as a major figure in the development of the National Park Service. [66]
O'Shaughnessy Dam is a 430-foot-high (131 m) concrete arch-gravity dam in Tuolumne County, California, United States.It impounds the Tuolumne River, forming the Hetch Hetchy Reservoir at the lower end of Hetch Hetchy Valley in Yosemite National Park, about 160 miles (260 km) east of San Francisco. [6]
Smith Peak, in Yosemite National Park in the United States, overlooks the Hetch Hetchy Reservoir and provides grand vistas of the Hetch Hetchy Valley and surrounding wilderness. It is named for a sheep owner who claimed to own the Hetch Hetchy Valley and used it as a summer pasture. [4]
Falls Creek, also known as the Falls River, [2] is a tributary of the Tuolumne River in Yosemite National Park, California, United States.The creek begins at the northern boundary of the national park and flows 24 miles (39 km) [1] to empty into the Tuolumne at Hetch Hetchy Reservoir, dropping over two well-known waterfalls.
Tueeulala Falls is located on the north side of Hetch Hetchy Valley in Yosemite National Park. At roughly 880 feet it is the smaller of two large waterfalls that spill into Hetch Hetchy Reservoir, the other being Wapama Falls. It is, however, the larger of the two in terms of greatest free-fall distance, as Wapama is split into two falls.
Less crowded than Yosemite Valley, whose roads have been choked with visitors, Hetch Hetchy Valley is a half-forgotten realm filled with granite walls, tall falls and wildflowers.