Original photograph: 17 x 12 cm, black & white photo, with "A" written in front in pencil, caption under photo reads "#164 - Excavation, Main Canal, Division 2, Feb. 13th, 1907", from Brown Album, reorganized by Elaine Roggensees, 1987 Digital reproduction of photograph: Excavation, Main Canal, Division 2. Hot springs showing in bed of canal in background, Brown Album, Bureau of Reclamation
