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[[image - black & white photograph of boats in canyon river; boat in back with chair on it appears to be the Emma Dean, John Wesley Powell's boat]] Photograph by Geological Survey TWO OF THE BOATS USED BY MAJOR POWELL IN EXPLORING THE CANYON
Transcription Notes:
The Emma Dean:
http://www.gettyimages.com/detail/news-photo/major-john-wesley-powells-boat-emma-dean-on-a-riverbank-news-photo/615319352#major-john-wesley-powells-boat-emma-dean-on-a-riverbank-grand-canyon-picture-id615319352