Keywords: COLORADO RIVER BELOW HOOVER DAM - NARA - 549021.jpg Scope and content General notes 549021 Local identifier 412-DA-6535 Environmental Protection Agency 12/02/1970 - NARA-Author O'Rear Charles 1941- Photographer 3403717 <br /> Las Vegas Clark county Nevada United States North and Central America inhabited place 4201760 36 167 -115 13 <br /> Still Picture Records Section Special Media Archives Services Division NWCS-S National Archives at College Park 8601 Adelphi Road College Park MD 20740-6001 05/1972 Record group Record Group 412 Records of the Environmental Protection Agency 1944 - 2006 Record group ARC 708 DOCUMERICA The Environmental Protection Agency's Program to Photographically Document Subjects of Environmental Concern compiled 1972 - 1977 Series ARC 542493 File unit File unit ARC Variant control numbers Agency-Assigned Identifier 109/55/006535<br /> NAIL Control Number NWDNS-412-DA-6535 Other versions <gallery> File COLORADO_RIVER_BELOW_HOOVER_DAM_-_NARA_-_549021 tif tif File COLORADO_RIVER_BELOW_HOOVER_DAM_-_NARA_-_549021 jpg jpg </gallery> NARA-cooperation PD-USGov 1972 in Nevada Colorado River 1972 in Arizona |