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| View Original: | Looking_upstream_into_Black_Canyon_toward_Hoover_Dam_site_showing_outlet_portals_of_four_diversion_tunnels_and..._-_NARA_-_293789.tiff (3000x2103) | |||
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| Keywords: Looking upstream into Black Canyon toward Hoover Dam site showing outlet portals of four diversion tunnels and... - NARA - 293789.tiff Scope and content Photograph from Volume Two of a series of photo albums documenting the construction of Hoover Dam Boulder City Nevada General notes 293789 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 1932-12-31 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-BC21500 yes Other versions <gallery> File Looking upstream into Black Canyon toward Hoover Dam site showing outlet portals of four diversion tunnels and - NARA - 293789 tiff tif File Looking upstream into Black Canyon toward Hoover Dam site showing outlet portals of four diversion tunnels and - NARA - 293789 jpg jpg </gallery> NARA-cooperation PD-USGov NARA TIF images with categorized JPGs | ||||