Keywords: "Looking upstream into Black Canyon toward Hoover Damsite from point on Six Companies Construction road on Nevada side." - NARA - 293720.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 293720 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 1932-08-12 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-BC21357 Other versions <gallery> File Looking_upstream_into_Black_Canyon_toward_Hoover_Damsite_from_point_on_Six_Companies_Construction_road_on_Nevada_side _-_NARA_-_293720 tif tif File Looking_upstream_into_Black_Canyon_toward_Hoover_Damsite_from_point_on_Six_Companies_Construction_road_on_Nevada_side _-_NARA_-_293720 jpg jpg </gallery> NARA-cooperation PD-USGov Suspension bridges in Arizona Hoover Dam low level Suspension bridges in Nevada Hoover Dam low level Bridges across canyons in Arizona Hoover Dam low level Bridges across canyons in Nevada Hoover Dam low level Bridges over the Colorado River Hooveer Dam low level 1932 in the United States Hoover Dam Construction of the Hoover Dam suspension bridge low level |