| William Henry Jackson Snake River Bridge [The Great West, 1871.] 1871 Stereoview Library of Congress, Prints and Photographs Division Reproduction Number: LC-DIG-stereo-1s00424 (digital file from original photo, front) LC-USZ62-60808 (b&w film copy neg.) LL/109382 Washington, D.C. : W.H. Jackson, photographer to the U.S. Geological Survey, 1871
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