U.S. Geological Survey Photographic Library

ID. King, 38

Cave-in at Comstock Mine near Virginia City, Nevada. Photo by T.H. O'Sullivan.U.S. Geological Exploration of the Fortieth Parallel (King Survey).

Cave-in at Comstock Mine near Virginia City, Nevada. Photo by T.H. O'Sullivan.U.S. Geological Exploration of the Fortieth Parallel (King Survey).

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