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| View Original: | Looking_downstream_through_Black_Canyon._View_shows_downstream_cofferdam_and_rock_backwash_barrier._Construction..._-_NARA_-_293858.tiff (2099x3000) | |||
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| Keywords: Looking downstream through Black Canyon. View shows downstream cofferdam and rock backwash barrier. Construction... - NARA - 293858.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 293858 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 1933-05-17 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-BC21697 yes Other versions <gallery> File Looking downstream through Black Canyon View shows downstream cofferdam and rock backwash barrier Construction - NARA - 293858 tiff tif File Looking downstream through Black Canyon View shows downstream cofferdam and rock backwash barrier Construction - NARA - 293858 jpg jpg </gallery> NARA-cooperation PD-USGov NARA TIF images with categorized JPGs | ||||