U.S. Geographical surveys west of the 100th meridian. Vol. I Geographical report. Plate No. XIX. Black Canon of the Colorado River, from Mirror Bar. 1871
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Beinecke Rare Book and Manuscript Library > U.S. Geographical surveys west of the 100th meridian. Vol. I Geographical report. Plate No. XIX. Black Canon of the Colorado River, from Mirror Bar. 1871