Archival objects in this container: Black Canyon, Colorado River ferry: photographic print and negative, approximately 1920 to 1929 Black Canyon, Colorado River ferry: photographic print and negative, approximately 1920 to 1929 Black Canyon, Colorado River ferry: photographic print and negative, approximately 1920 to 1929 Black Canyon, Colorado River ferry: photographic print and negative, approximately 1921 to 1930 Black Canyon, Colorado River ferry: photographic print and negative, approximately 1922 to 1931 Black Canyon, Colorado River ferry: photographic print and negative, approximately 1923 to 1932 Black Canyon, Colorado River ferry: photographic print and negative, approximately 1924 to 1933 Colorado County Commissioners fishing at Colorado River: photographic print and negative, approximately 1920 to 1930 Dedication for the signing of the Boulder Canyon Project Act of 1929: photographic print and negative, 1928 Aerial view of Hoover Dam construction, courtesy of Union Pacific Railroad: photographic print, approximately 1935 to 1936 First official reclamation car to cross the Hoover (Boulder) Dam: photographic print and negative, 1936 Marian Nixon, with autograph, on the Cashman boat on the Colorado River: photographic print, approximately 1935 to 1945 Gar Wood boat on Lake Mead: photographic print, approximately 1938 to 1945 Group on a boat in front of Hoover Dam: photographic print and negative, approximately 1938 to 1945 Group on a boat in front of Hoover Dam: photographic print and negative, approximately 1938 to 1945 Group on a boat in front of Hoover Dam: photographic print and negative, approximately 1938 to 1945 Man fishing in front of Hoover Dam: photographic print, approximately 1938 to 1945