Keywords: Nevada spillway and adjacent terrain as seen from Arizona rim of Black Canyon. Head towers for Six Companies, Inc.... - NARA - 293947.jpg Scope and content Photograph from Volume Two of a series of photo albums documenting the construction of Hoover Dam Boulder City Nevada General notes 293947 Local identifier Department of the Interior Bureau of Reclamation Engineering and Research Center 05/18/1981 - 03/04/1988 NARA's Rocky Mountain Region Denver NRGA Building 48 Denver Federal Center West 6th Avenue and Kipling Street Denver CO 80225-0307 1933-08-30 Record group Record Group 115 Records of the Bureau of Reclamation 1889 - 2008 Record group ARC 444 Photograph albums compiled 1903 - 1972 Series ARC 293611 File unit File unit ARC Variant control numbers NAIL Control Number NRG-115-CONSTPHO85006-BC21946 Other versions <gallery> File Nevada spillway and adjacent terrain as seen from Arizona rim of Black Canyon Head towers for Six Companies Inc - NARA - 293947 tiff tif File Nevada spillway and adjacent terrain as seen from Arizona rim of Black Canyon Head towers for Six Companies Inc - NARA - 293947 jpg jpg </gallery> NARA-cooperation PD-USGov Six Companies Inc cableways at Hoover Dam construction site runway Nevada 1933-08-30 1933 in Nevada Hoover Dam |