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template is Video
1930s Hoover Dam
template is PDF
47-043A
template is Document
Arizona Days and Ways, 1956-08-26
template is Video
Boulder Dam and Grand Coulee Dam
template is Video
Boulder Dam opens
template is Video
Boulder Dam under construction
template is Video
Colorado River diverted for construction of Hoover Dam in Nevada
template is Video
Construction of Hoover Dam in Nevada
template is Video
Dedication of site of construction of Hoover Dam in Nevada
template is Video
Explosions set off in construction of Hoover Dam in Nevada
template is Image
Lake Mead National Recreation Area, 1950
template is Image
Lake Mead National Recreation Area, 2000
template is Image
Lake Mead, Boulder Basin, Virgin Basin
template is Image
Lake Mead, Overton Arm Northern Part, Overton Arm Southern Part
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