Original photograph: 17 x 12 cm, black & white photo, with "NA" written in front in pencil, "162" in red ink, caption under photo reads "#86 - Excavation Main Canal, Div.2, D.W.M. 2/13/07", from Brown Album, reorganized by Elaine Roggensees, 1987 Digital reproduction of photograph: Excavation Main Canal, Div.2, Brown Album, Bureau of Reclamation