Archival objects in this container: Hoover Dam: photographic print, approximately 1935 to 1940 Hoover Dam: photographic print, approximately 1935 to 1940 Hoover Dam: photographic print, approximately 1935 to 1940 Interior of the Hoover Dam: photographic print, approximately 1935 to 1940 Lake Mead: photographic print, approximately 1935 to 1940 Hoover Dam: photographic print, approximately 1935 to 1940 Hoover Dam: photographic print, approximately 1935 to 1940 Hoover Dam: photographic print, approximately 1935 to 1940 Penstocks at Hoover Dam: photographic print, approximately 1935 to 1940 Canyon wall near Hoover Dam: photographic print, approximately 1935 to 1940 Spillway, Hoover Dam: photographic print, approximately 1935 to 1940 Hoover Dam, intake towers: photographic print, approximately 1935 to 1940 Hoover Dam, intake towers: photographic print, approximately 1935 to 1940 Men standing in a diversion tunnel, Hoover Dam: photographic print, approximately 1935 to 1940 Men building a wall at Lake Mead viewpoint: photographic print, approximately 1935 to 1940 Men building a wall at Lake Mead Viewpoint: photographic print and negative, approximately 1935 to 1940 Boulder Beach and Marina near Lake Mead: photographic print, approximately 1935 Boulder Beach and Marina near Lake Mead: photographic print, approximately 1935 Men working on a boat hull, Boulder Beach, Nevada: photographic print and negative, approximately 1935 to 1940 Men working on a boat hull, Boulder Beach, Nevada: photographic print, approximately 1935 to 1940 Men working on a boat hull, Boulder Beach, Nevada: photographic print, approximately 1935 to 1940