Timothy O'Sullivan Wheeler Expedition Photograph, Black Canon, Colorado River, Looking Above from Mirror Bar
Albumen photograph, 8 x 10.75 in., on an 11 x 13.75 in. mount with the imprinted title Black Canon, Colorado River, Looking Above from Mirror Bar, with T.H. O'Sullivan Phot. lower left and No.9 lower right of the print. O'Sullivan produced this landscape photograph during the Wheeler Expedition of 1873. The boat featured at center is O'Sullivan's photography boat, complete with make shift darkroom.