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Uncomfortable rocks - stereoscopic view, public domain photorpaph
No. 207. Written on back: Grand; office. Part of series: U.S. topographical and geological survey of the valley of the Colorado River of the west, by J.W. Powell and A.H. Thompson.
Uncomfortable rocks - Public domain albumen print photogrpaph
No. 207. Written on back: Grand; office. Part of series: U.S. topographical and geological survey of the valley of the Colorado River of the west, by J.W. Powell and A.H. Thompson.