John K. Hillers 1872 The boat [U.S. topographical and geological survey of the valley of the Colorado River of the west, by J.W. Powell and A.H. Thompson. No. 190]
Stereoview Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-stereo-1s00756 (digital file from original photo, front) LC-DIG-stereo-1s00756 (digital file from original photo, back) LC-USZ62-104700 (b&w film copy neg.)
John Wesley Powell's boat with chair attached, on the banks of the Colorado River.
