Original photograph: 17 x 12 cm, black & white photo, with "A" and "KP" written in front in pencil, caption under photo reads "Clear Lake Dam - Rock pitching on upstream slope, November [no date], 1909", white marks - upper center, center, lower edge (center), from Bright Blue Album Digital reproduction of photograph: Clear Lake Dam - Rock pitching on upstream slope, Bright Blue Album, Bureau of Reclamation
