Signature: Titled and numbered in ink lower right edge of mount, no. ?
Signed in ink lower right: "C. E. Watkins"
Inscription: Signed in ink on mount, recto BR: "C. E. Watkins"; inscribed in ink on mount, recto BRC: "Cathedral Rock"
[Rinhart Galleries, Colebrook, Connecticut]; Gilman Paper Company Collection, New York, July 19, 1985
Palmquist, Peter E. Carleton E. Watkins: Photographs, 1861–1874. San Francisco: Fraenkel Gallery, 1989. no. 8.
Nickel, Douglas R. Carleton Watkins: The Art of Perception. San Francisco: The Metropolitan Museum of Art, 1999. pl. 20.