O'Shaughnessy Dam to Tuolumne River

Mather, California 95655

O'Shaughnessy Dam to Tuolumne River

O'Shaughnessy Dam to Tuolumne River Professional Review and Guide

"The O’Shaughnessy Dam rises 312 feet above the Tuolumne River and extends 910 feet between canyon walls at the west end of Hetch Hetchy Valley. The valley is now submerged beneath the Hetch Hetchy Reservoir, which covers 1,861 acres of the narrow, rugged canyon with high granite walls. This hike follows a vehicle-restricted road from the top of O’Shaughnessy Dam to the Tuolumne River at the base of the dam, where a roaring spillway feeds the lower river canyon. The trail continues through the deep granite gorge parallel to the river. Watch for rattlesnakes."

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Trail Information

Mather
Nearby City
2
Distance
250 feet
Elevation Gain
Out-and-back
Trail Type
Easy to Moderate
Skill Level
1 hour
Duration
Best spring through fall
Season
Yosemite National Park
Local Contacts
USGS Lake Eleanor
Local Maps

Activity Feed

Oct 2018