Access Restricted Archival objects in this container: Hoover Dam as seen from the control tower of the 150-ton cableway on the Nevada rim of Black Canyon, 1933 December 20 Interior view of the Uptown Hardware Store, 1939 August 28 President Franklin D. Roosevelt delivering the dedication address at Hoover Dam, 1935 September 30 Hoover Dam under construction in Black Canyon, 1935 November 26 Airplane motor propelled boat used in photographic survey of Colorado River between Hoover Dam and Jumbo Wash, 1935 March 16 Indigenous American petroglyphs at Atlatl Rock, Valley of Fire, near St. Thomas, Nevada, 1935 April 20 John Chatfield Page, U.S. Senator Harold L. Ickes, Jane Dahlman Ickes, and I. C. Harris in the Nevada wing of the Hoover Dam power plant, 1939 February 23 Mud deposit at Hoover Dam; a member of the survey crew displays a representative sample of one of the mud cubes formed to show the depth of the crevices, 1939 March 14 Workers placing concrete in column H-5 between elevation 630 and elevation 635 during the test pour made before the Hoover Dam Board of Consulting Engineers, 1933 August 31 Aerial view looking upstream through the Nevada spillway and two panels of the overflow weir under construction, 1933 June 10 Hoover Dam construction, 1933 August 29 Downstream face of Hoover Dam and its power plant at night, as seen from the lower portal road at the dam, 1938 April 12 Crowds waiting to visit the Hoover Dam power plant on Memorial Day, 1937 May 30 Arizona-side generator room at Hoover Dam, as seen from the balcony at elevation 705, 1937 June 24 Arizona-side generator room at Hoover Dam, as seen from the balcony at elevation 705, 1937 June 24 Lake Mead, boat docks, and a bathing beach developed by the National Park Service for recreational use, 1937 June 29 "Big Bertha," the Six Companies, Inc. Motor transport used to haul workmen between Boulder City and Hoover Dam, 1934 April 12 Hoover Dam construction, 1934 August 22 Hoover Dam under construction, including the upper cofferdam area, from the rim of the Arizona side of Black Canyon, 1932 November 18 Construction of the Hoover Dam, undated