Inscription: Inscribed in pencil on print, verso B: "Hot Spring 175 deg. in a Valley 6000 ft high - Ruby Valley // between E. Humboldt"
Alfred Rudolph Waud; [John Coplans]; Gilman Paper Company Collection, New York, October 12, 1977
Naef, Weston J., and James Wood. Era of Exploration: The Rise of Landscape Photography in the American West, 1860–1885. Buffalo: Albright-Knox Art Gallery, 1975. p. 129.
Snyder, Joel. American Frontiers: The Photographs of Timothy O'Sullivan, 1867–1874. Millerton, N.Y.: Aperture, 1981. p. 62 (different print).