Access Restricted Archival objects in this container: 413: "View of Boulder Dam, looking downstream": photographic postcard, approximately 1930 to 1939 432: "The fighting top of an intake tower at Boulder Dam": photographic postcard, approximately 1930 to 1939 456: "Bringing the water of the Colorado under control at Boulder Dam", spectators watching Colorado River water be diverted around the Dam site: photographic postcard, 1935 February 01 461: "Well, I'll be Dammed, Colorado River" Lake Mead filling behind Hoover Dam: photographic postcard, approximately 1930 to 1939 415: Trucks for transporting workers to the Hoover Dam site: photographic postcard, approximately 1930 to 1939 437: "Fabrication Plant of Babcock & Wilcox Co. at Boulder Dam Project": photographic postcard, approximately 1930 to 1939 440: "30 feet to go, Boulder Dam": photographic postcard, approximately 1930 to 1939 457: "Boulder Dam with the Arizona spillway in the background": photographic postcard, approximately 1930 to 1939 438: Boulder Dam under construction: photographic postcard, approximately 1930 to 1939 445: Boulder Dam: photographic postcard, approximately 1930 to 1939 460: "Form K, first to reach top of Boulder Dam": photographic postcard, approximately 1930 to 1939 470: Lake Mead reservoir filling behind Boulder Dam: photographic postcard, approximately 1930 to 1939 453: "Crest of Boulder Dam showing workmen nearing completion": photographic postcard, approximately 1930 to 1939 439: "It won't be long now, Boulder Dam, near Las Vegas, Nevada": photographic postcard, approximately 1930 to 1939 404: "Pipes for Boulder Dam": photographic postcard, approximately 1930 to 1939 441: Boulder Dam under construction: photographic postcard, approximately 1930 to 1939 447: "Boulder Dam showing intake towers on the upstream side": photographic postcard, approximately 1930 to 1939 442: View of one of the Boulder Dam spillways: photographic postcard, approximately 1930 to 1939 418: Boulder Dam under construction: photographic postcard, approximately 1930 to 1939 416: Boulder Dam construction at night: photographic postcard, approximately 1930 to 1939 454: View of Lookout Point and Boulder Dam: photographic postcard, approximately 1930 to 1939 455: View of Lookout Point and Boulder Dam: photographic postcard, approximately 1930 to 1939 429: "Top workings, Boulder Dam": photographic postcard, approximately 1930 to 1939 428: "Upstream face of Boulder Dam from the Nevada side of the Colorado River": photographic postcard, approximately 1930 to 1939 459: View of Boulder Dam taken from the Nevada side, showing the Arizona spillway and tops of intake towers: photographic postcard, approximately 1930 to 1939 Load More