Photo of area where Boulder [Hoover] Dam site was proposed, Colorado-Mexico, circa 1921 Date: 1921 Resource Type: still image Collection: Los Angeles Times Photographic Collection OpenUCLA Collections
Sketch of the Boulder [Hoover] Dam site, circa 1921 Date: 1921 Resource Type: still image Collection: Los Angeles Times Photographic Collection OpenUCLA Collections
Dragline excavator on Hansen Dam construction site, San Fernando Valley, 1938 Description: A dragline excavator on top of a hill at the Hansen Dam construction site. Date: 1938 Resource Type: still image Collection: Los Angeles Times Photographic Collection