Original photograph: 14 x 9 cm, black & white photo, with "A" written in front in pencil, "100" in red ink, caption under photo reads "#32 - Concrete Steel culvert under Main Canal, Div.3, August 15, 1906", from Brown Album, reorganized by Elaine Roggensees, 1987 Digital reproduction of photograph: Concrete Steel culvert under Main Canal, Div.3., Brown Album, Bureau of Reclamation
