O'Shaughnessy Dam, Yosemite National Park

Name: O'Shaughnessy Dam
Address: Yosemite National Park, United States

#57 among attractions in Yosemite National Park

Dam

Gallery (4)

Map

Map

Gallery

O'Shaughnessy Dam, Yosemite National Park

Facts and practical information

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 Hetch Hetchy Valley in Yosemite National Park, about 160 miles east of San Francisco. The dam and reservoir are the source for the Hetch Hetchy Aqueduct, which provides water for over two million people in San Francisco and other municipalities of the west Bay Area. The dam is named for engineer Michael O'Shaughnessy, who oversaw its construction. ()

Length: 900 ftHeight: 430 ftReservoir area: 3.08 mi²Coordinates: 37°56'51"N, 119°47'17"W

Address

Yosemite National Park United States

ContactAdd

Social media

Add

Yosemite National Park

Day trips

O'Shaughnessy Dam – popular in the area (distance from the attraction)

Nearby attractions include: Wapama Falls, Tueeulala Falls, Lake Eleanor, Lake Vernon.

1.7 miNE
Natural attraction, Waterfall, Hiking trail
Wapama Falls, Yosemite National Park
43 min walk • Wapama Falls is the larger of two waterfalls located on the northern wall of Hetch Hetchy Valley in Yosemite National Park. It flows almost year-round and during peak flow has been known to inundate the trail bridge crossing its base, making the falls impossible to pass.
1.4 miNE
Natural attraction, Nature, Waterfall
Tueeulala Falls, Yosemite National Park
36 min walk • 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.
4.6 miNW
Natural attraction, Nature, Lake
Lake Eleanor, Yosemite National Park
119 min walk • Lake Eleanor is a reservoir located in the northwestern backcountry of Yosemite National Park at an altitude of 4,657 feet. The reservoir has a capacity of 26,100 acre feet and a surface area of 953 acres.
5.8 miNE
Natural attraction, Nature, Lake
Lake Vernon, Yosemite National Park
147 min walk • Lake Vernon is located in the Tiltill Valley in the northern sector of Yosemite National Park just north of Hetch Hetchy Valley. The surface elevation of the lake is 6,568 ft. Due to the remote location of the lake, it is usually only accessed as a backpacking destination.
1.5 miE
Natural attraction, Nature, Mountain
Kolana Rock, Yosemite National Park
39 min walk • Kolana Rock is a prominent granite dome located along the southern edge of Hetch Hetchy Valley in Yosemite National Park. John Muir stated that Kolana was the Indian name for the rock.
2.3 miNE
Mountain
Hetch Hetchy Dome
58 min walk • Hetch Hetchy Dome is a granite dome, in the Hetch Hetchy area of Yosemite National Park.
5.4 miNE
Hiking, Hiking trail
Hetch Hetchy to Lake Vernon Trail, Yosemite National Park
137 min walk • The Hetch Hetchy to Lake Vernon Trail in Yosemite starts from the parking lot close to the O'Shaughnessy Dam at the Hetch Hetchy Reservoir, and goes to Lake Vernon through the Yosemite Wilderness.
3.2 miSE
Natural attraction, Nature, Mountain
Smith Peak, Yosemite National Park
83 min walk • 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.
3.9 miNW
Rustic architecture
Frog Creek Cabin
100 min walk • The Frog Creek Cabin, in Yosemite National Park, was listed on the National Register of Historic Places in 2014. It is a one-story frame cabin, about 14 by 28 feet in plan, with a small screened porch, about 13 by 4 feet extending. It is National Park Service Rustic in style.