Archival objects in this container: Parker Dam, Arizona: photographic print, approximately 1940 to 1960 Parker Dam, Arizona: photographic print, approximately 1940 to 1960 Looking upstream through Black Canyon, Arizona: photographic print, 1922 Nevada/Arizona intake towers: photographic print, 1933 Hoover Spillway Discharge: photographic print, 1941 August 06 Hoover Spillway Discharge: photographic print, 1941 August 06 Hoover Dam discharge bridge: photographic print, 1941 August 06 Arizona Drumgate: photographic print, 1941 August 06 View of the Lake Mead, Nevada during discharge through the Arizona Spillway: photographic print, 1941 August 06 Arizona Spillway Tunnel into the Colorado River: photographic print, 1941 August 06 Hoover Dam switchyard: photographic print, approximately 1950 to 1959 Hoover Dam switchyard: photographic print, approximately 1950 to 1959 Hoover Dam warehouse: photographic print, 1950 November 28 Hoover Dam powerplant: photographic print, 1950 December 13 Canyon wall above Nevada valve house: photographic print, approximately 1950 to 1955 Hoover Dam switchyard before construction: photographic print, 1950 October 02 Arizona wing of the powerhouse: photographic print, 1950 August 24 Hoover Dam powerplant, Arizona wing: photographic print, 1950 December 05 Welders making modifications to the Hoover Dam: photographic print, 1951 November Contstuction of a turbine in the Hoover Dam: photographic print, 1951 June 28 Constructing a turbine for the Hoover Dam: photographic print, 1951 September 24 Construcion turbine at the Hoover Dam: photographic print, 1951 July 20 Construction set for a turbine at the Hoover Dam: photographic print, 1951 October