You can view this bundle in the Earth - A Work in Progress collection area.
Photo of the rock faces surrounding the Hetch Hetchy Dam and Reservoir. The bedrock is similar to that of Yosemite Valley, primarily granite, grano-diorite and, to a lesser degree, diorite. The low-water mark is evident against the rock face.
Tags: hetch hetchy dam , hetch hetchy reservoir , united states dams , united states reservoirs , united states rivers , yosemite national park
Added to Earth - A Work in Progress on June 4, 2014.
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