Original photograph: 17 x 12 cm, black & white photo, with "A" written in front in pencil, caption under photo reads "#179 - Main Canal headgates from temporary dam across entrance to lake. June 27th, 1907", from Brown Album, reorganized by Elaine Roggensees, 1987 Digital reproduction of photograph: Main Canal headgates from temporary dam across entrance to the lake, Brown Album, Bureau of Reclamation
