Archival objects in this container: Hoover Dam construction and Colorado River, U. S. Bureau of Reclamation, 1930 Black Canyon and Boulder Canyon, Colorado River, approximately 1922 to 1936 Spring Mountain area, southern Nevada, approximately 1950 to 1959 Structural diagrams of geological features for publication, approximately 1950 to 1960 Frenchman Mountain, Rainbow Garden, Valley of Fire, southern Nevada, approximately 1950 to 1960 Partially exposed lithified tree trunk, Muddy Mountains, southern Nevada, approximately 1940 to 1950 Upper Lake Mead, southern Nevada, U. S. Bureau of Reclamation, 1949 Buffington tectonic window, southern Nevada, 1920 to 1940 Muddy Mountains tectonic window, “God’s Pocket,” southern Nevada, approximately 1920 to 1926 Aerial view of Frenchman Mountain and Sunrise Mountain area, southern Nevada, approximately 1950 July 11 to 1950 July 27 Aerial view of Colorado River basin, southern Nevada and Arizona, 1938 April 24 Frenchman Mountain, Keystone Thrust, and Muddy Mountains, approximately 1950 April 23 to 1960 Colorado River gravels, Aztec Wash, west end of Boulder Canyon, 1950 May 02 Locations in southern Nevada and western Arizona, approximately 1945 May 01 to 1949 “The Bowl,” Muddy Mountains, southern Nevada, 1950 April 24 Detail of desert pavement, east side of Pahrump Valley, southern Nevada, 1950 Colorado River, Pierce Ferry delta, Lower Granite Gorge, Surprise Canyon and unnamed canyon, 1949 March Three Kids Mine, Patsy Mine, Frenchman Mountain, and Elephant Butte, southern Nevada, approximately 1950 April 23 to 1960
