U.S. Geological Survey Photographic Library

ID. Wheeler 1871, 11

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Wall in the Grand Canyon. Photo by T.H. O'Sullivan.U.S. Geographical Surveys West of the One Hundredth Meridian (Wheeler Survey, 1871 Expedition).

Wall in the Grand Canyon. Photo by T.H. O'Sullivan.U.S. Geographical Surveys West of the One Hundredth Meridian (Wheeler Survey, 1871 Expedition).

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