Colorado River boat dock near Hoover Dam, May 1972
Size: 1718px × 1164px
Photo credit: © PF-(usna) / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: .., agency, archives, documerica, environmental, environmentalprotectionagency, historic, history, nara:arcid=548969, national, protection, usa, usnationalarchives