Browsing Aerial Photography by Creator "engineering firm: United States Bureau of Reclamation (American, 1902-), contractor: Six Companies (American, 20th century)"
Now showing items 1-9 of 9
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Hoover Dam
United States Bureau of Reclamation; Six Companies (1931-1936) -
Hoover Dam
engineering firm: United States Bureau of Reclamation (American, 1902-), contractor: Six Companies (American, 20th century) (2010-04-05) -
Hoover Dam
engineering firm: United States Bureau of Reclamation (American, 1902-), contractor: Six Companies (American, 20th century) (2010-04-05) -
Hoover Dam
engineering firm: United States Bureau of Reclamation (American, 1902-), contractor: Six Companies (American, 20th century) (2010-04-05) -
Hoover Dam
engineering firm: United States Bureau of Reclamation (American, 1902-), contractor: Six Companies (American, 20th century) (2010-04-05) -
Hoover Dam
engineering firm: United States Bureau of Reclamation (American, 1902-), contractor: Six Companies (American, 20th century) (2010-04-05) -
Hoover Dam
engineering firm: United States Bureau of Reclamation (American, 1902-), contractor: Six Companies (American, 20th century) (2010-04-05) -
Hoover Dam
engineering firm: United States Bureau of Reclamation (American, 1902-), contractor: Six Companies (American, 20th century) (2010-04-05) -
Hoover Dam
engineering firm: United States Bureau of Reclamation (American, 1902-), contractor: Six Companies (American, 20th century) (2010-04-05)