Access Restricted Archival objects in this container: 611: View of Boulder Dam from Lake Mead: photographic postcard, approximately 1930 to 1939 612: View of Boulder Dam from Lake Mead: photographic postcard, approximately 1930 to 1939 613: View of Boulder Dam with valves discharging water into the riverbed: photographic postcard, approximately 1930 to 1939 614: View of Boulder Dam with valves discharging water into the riverbed: photographic postcard, 1936 September 11 615: View of Boulder Dam with valves discharging water into the riverbed: photographic postcard, 1936 September 11 616: View of Boulder Dam with valves discharging water into the riverbed: photographic postcard, approximately 1930 to 1939 617: View of Boulder Dam with valves discharging water into the riverbed: photographic postcard, approximately 1930 to 1939 618: "Testing the twelve valves, Boulder Dam": photographic postcard, 1936 September 11 619: View of Boulder Dam with valves discharging water into the riverbed: photographic postcard, approximately 1930 to 1939 620: View of Lake Mead: photographic postcard, approximately 1930 to 1939 621: "Valve house discharge, Boulder Dam": photographic postcard, 1936 September 11 622: "Valve house flow, Boulder Dam": photographic postcard, 1936 September 11 623: View of Boulder Dam with valves discharging water into the riverbed: photographic postcard, 1936 September 11 624: "Discharge from valves at Boulder Dam": photographic postcard, 1936 September 11 625: "Boating on the blue waters of Mead Lake, Boulder Dam Project": photographic postcard, approximately 1930 to 1939 626: "A bit of the desert near Las Vegas, Nevada": photographic postcard, approximately 1930 to 1939 627: "Fishing is good at Mead Lake, Boulder Dam Project": photographic postcard, approximately 1930 to 1939 628: "Ancient skeleton of the Lost City Near Las Vegas, Nevada": photographic postcard (restricted), approximately 1930 to 1939 629: Reenactment of "Pueblos in the salt caverns near Las Vegas, Nevada": photographic postcard, approximately 1930 to 1939 630: The Arumine boat with passengers on Lake Mead: photographic postcard, approximately 1930 to 1939 631: Looking upstream from Boulder Canyon, Lake Mead: photographic postcard, approximately 1930 to 1939 632: Boulder Canyon, Lake Mead: photographic postcard, approximately 1930 to 1939 633: View of rocky shoreline along Lake Mead: photographic postcard, approximately 1930 to 1939 634: "Sunny Lake Mead, Boulder Dam project": photographic postcard, approximately 1930 to 1939 635: View of Lake Mead: photographic postcard, approximately 1930 to 1939 Load More