Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1521-R2 - Klamath Project. 100-F-1 Drain dug as borrow pit for construction of M-2-a-2 Lateral, Coppock Bay. D. H. Gross, Photographer. August 14, 1947", dark stains on photo, from Black Binders Digital reproduction of photograph: KP-1521-R2 - Klamath Project, Black Binders, Bureau of Reclamation