Original photograph: 17 x 12 cm, black & white photo, with "NA", "KP" and "#20" written in front in pencil, caption under photo reads "Clear Lake Dam - Derrick loading cars, wasteway excavation, June 26, 1909", white areas on picture, from Bright Blue Album Digital reproduction of photograph: Clear Lake Dam - Derrick loading cars, wasteway excavation, Bright Blue Album, Bureau of Reclamation
