O'Shaughnessy Dam is a 430-foot-high 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 Het
O'Shaughnessy Dam
The site of O'Shaughnessy Dam before construction began, c. 1914
Construction work on the dam in August 1922
The dam as initially completed in May 1923
Yosemite National Park
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Yosemite National Park is a national park of the United States in California. It is bordered on the southeast by the Sierra National Forest and on the northwest by Stanislaus National Forest. The park
O'Shaughnessy Dam (California)
…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. The dam and reservoir are the source for the Hetch Hetchy Aqueduct, which provides water for over two…
Eastern Yosemite Valley from Glacier Point
Paiute ceremony (1872)
Lafayette Bunnell gave Yosemite Valley its name.
Sculpture of Chief Tenaya made by Sal Maccarone for the Tenaya Lodge in Yosemite National Park