U.S. Geological Survey Photographic Library
ID. Jackson, W.H. 146
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Quarrying granite in Cottonwood Canyon, 17 miles south of Salt Lake City, for the Mormon Tabernacle. The ground is completely strewn with immense boulders and detached masses of granite, which have fallen down from the walls of the canyon on either side, some of which are from 30 to 40 feet square. All the quarrying is confined to splitting up these blocks. Salt Lake County, Utah. 1872.
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