Archival objects in this container: Hoover Dam spillway, approximately 1935-1939 Hoover Dam spillway, approximately 1935-1939 Hoover Dam's downstream face and outlet works, approximately 1935-1939 Hoover Dam's downstream face and outlet works, approximately 1935-1939 Hoover Dam's downstream face and outlet works, approximately 1935-1939 Hoover Dam's outlet works and power house, approximately 1935-1939 Hoover Dam's downstream face and outlet works, approximately 1936-1939 Hoover Dam's downstream face and outlet works, approximately 1936-1939 Construction worker standing below the Hoover Dam outlet works, approximately 1935-1937 Hoover Dam's downstream face and outlet works, approximately 1933-1936 Hoover Dam's downstream face and outlet works, approximately 1933-1936 Hoover Dam's outlet works from the side of the powerhouse, approximately 1933-1936 Hoover Dam's downstream face and outlet works, approximately 1933-1936 Hoover Dam's downstream face and outlet works, approximately 1933-1936 Hoover Dam outlet works, approximately 1933-1936 Hoover Dam outlet works, approximately 1933-1936 Hoover Dam outlet works, approximately 1933-1936 Hoover Dam's downstream face and outlet works, approximately 1933-1936 Hoover Dam's outlet works from inside the Black Canyon walls, approximately 1933-1936 Hoover Dam's downstream face and outlet works, approximately 1933-1936 Hoover Dam's downstream face and outlet works, approximately 1933-1936 Hoover Dam's downstream face and outlet works, approximately 1933-1936 Hoover Dam's downstream face and outlet works, approximately 1933-1936 Hoover Dam's downstream face and outlet works, approximately 1933-1936 Hoover Dam outlet works from the side of the powerhouse, approximately 1933-1936 Load More