Archival objects in this container: Power generators in the powerhouse at Hoover Dam, approximately 1935-1940 Power generators in the powerhouse at Hoover Dam, approximately 1935-1940 Power generators at the Hoover Dam powerhouse, approximately 1935-1940 Power generators at the Hoover Dam powerhouse, approximately 1935-1940 Power generators in the powerhouse at Hoover Dam, approximately 1935-1940 Power generator equipment in the powerhouse at Hoover Dam, approximately 1935-1940 Power generator equipment in the powerhouse at Hoover Dam, approximately 1935-1940 Generator shaft in the Hoover Dam powerhouse, approximately 1935-1940 Generator shaft in the Hoover Dam powerhouse, approximately 1935-1940 Power generator equipment in the Hoover Dam powerhouse, approximately 1935-1940 Power generator equipment in the Hoover Dam powerhouse, approximately 1935-1940 Power generator wells inside the powerhouse at Hoover Dam, approximately 1935-1940 Interior of Hoover Dam powerhouse, approximately 1937-1940 Visitors standing on a viewpoint platform inside the Hoover Dam powerhouse, approximately 1935-1940 Visitors standing on a viewpoint platform inside the Hoover Dam powerhouse, approximately 1935-1940 Visitors standing on a viewpoint platform inside the Hoover Dam powerhouse, approximately 1935-1940 Visitors standing on a viewpoint platform inside the Hoover Dam powerhouse, approximately 1935-1940 Visitors standing on a viewpoint platform inside the Hoover Dam powerhouse, approximately 1935-1940 Mosaic located on the floor of a visitors' platform inside Hoover Dam, approximately 1937-1940