Original photograph: 17 x 12 cm, black & white photo, with "NA" and "KP" written in front in pencil, caption under photo reads "Clear Lake Dam - Derrick excavating at lower end waste way, June 26, 1909", torn lower left corner- missing (barely), from Bright Blue Album Digital reproduction of photograph: Clear Lake Dam - Derrick excavating at lower end waste way, Bright Blue Album, Bureau of Reclamation
