Archival objects in this container: Aerial view looking northwest, showing terminal reservoir site, plant site, and temporary boarding camp at Basic Magnesium, 1941 December 30 Looking east, showing first stages of floor construction of electrical distribution tunnel, 1942 January 02 Aerial view of Lake Mead water intake for Basic Magnesium, 1942 January 05 Aerial view of Basic Magnesium pipeline and reservoir, 1942 January 05 Aerial view looking southeast, showing construction of metal plant units nos. 1-10, 1942 January 05 Aerial view looking east, showing construction in progress, including chlorine plant units, metal plant units, temporary brick grinding building, and permanent warehouse group, 1942 January 05 Aerial view looking east, showing temporary boarding camp, 1942 January 05 Ditch excavation for pipeline, 1942 January 09 Looking east, showing reinforced steel for floor slab of electrical distribution tunnel, 1942 January 09 Excavation for footings rectifier building no. 1, 1942 January 09 Crew setting stubs for tower on North Transmission near Lake Mead, 1942 January 10 Aerial view looking towards Lake Mead, showing type of country crossed by the pipeline, 1942 January 13 Aerial view looking towards Lake Mead, showing booster pumping station site, 1942 January 13 Aerial view looking southeast, showing metal plant units 1, 2, and 3, 1942 January 13 Aerial view looking northwest, showing permanent warehouse group, structural machine shop, and exterior wall forms, 1942 January 13 Aerial view showing sewage disposal plant for temporary boarding camps, 1942 January 13 Reinforcing steel and electrical conduit in floor slab of rectifier building no. 1, 1942 March 28 Reinforcing steel and electrical conduit in floor slab of rectifier building no. 1, 1942 March 28 Metal plant electrolysis unit no. 1, showing steel framing and electrolysis cells in place, 1942 March 28 Aerial view of Henderson, Nevada looking northwest over the Basic Magnesium plant and Whitney Mesa showing houses under construction, 1942 March 31 Aerial view of Henderson and the Basic Magnesium plant showing the terminal reservoir, demountable housing, and temporary boarding camp, 1942 March 31 Aerial of the Basic Magnesium plant looking west over the Las Vegas Valley toward the Spring Mountains, 1942 March 31 Aerial view of preparation plant showing magnesite silo footings in foreground and pellet production building in background, 1942 March 31 Aerial view of a portion of the chlorine plant showing brine preparation tanks, footings, steel framing of cell renewal building, chlorine electrolysis buildings, drying, cooling, and liquefaction units between electrolysis buildings, and temporary brick grinding building, 1942 March 31 Aerial view of metal plant unit no. 1 showing rectifier unit, electrolysis unit, and chlorination unit, 1942 March 31 Load More