Original photograph: 8 x 14 cm, black & white photo, with "A" written in front in pencil, "104" in red ink, caption under photo reads "#37 - Excavating Main Canal, Div.1 above tunnel, D.W.M. 8/23/06", from Brown Album, reorganized by Elaine Roggensees, 1987, Digital reproduction of photograph: Excavating Main Canal, Div.1 above tunnel, Brown Album, Bureau of Reclamation