Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1429-R2 - Klamath Project. Region II. Boundary Dam Materials Investigation. Right spillway draw, looking up draw from near Drill Hole No. 7. Dorwin Grise, Photo. April 23, 1947", from Black Binders Digital reproduction of photograph: KP-1429-R2 - Klamath Project. Region II. Boundary Dam Materials Investigation, Black Binders, Bureau of Reclamation