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Colorado River
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Big Creek projects and Colorado River survey
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Photographs of 1922 Colorado River Survey with typescript captions by "E.C.L.", including Hall's Crossing, Rock Island, Hole in the Wall, San Juan River, San Juan Dam site, Aztec Creek, Rainbow Natural Bridge, Girand Dam site, Sentinel Rock Dam site, Boulder Canyon Dam site, Black Canyon Dam site, Pierce's Ferry, Grand Wash Canyon, Hualapai Dam site, Virgin Canyon Dam site, Callville Dam site, El Dorado Dam site; Big Creek projects include Huntington Lake Dam 1 fourth unit of Powerhouse 1, Florence Lake Dam construction, tunnel construction, and diversion dam at Camp 63.
photCL SCE

Big Creek projects & Colorado River Survey
Visual Materials
Big Creek projects & Colorado River Survey [Colorado River Survey (1922 - with captions)- Hall's Crossing, Rock Island, Hole in the Wall, San Juan River, San Juan dam site, Aztec Creek, Rainbow Natural Bridge, Girand dam site, Sentinel Rock dam site, Boulder Canyon dam site, Black Canyon dam site, Pierce's Ferry, Grand Wash Canyon, Hualpai dam site, Virgin Canyon dam site, Callville dam site, El Dorado dam site; Huntington Lake -Dam 1 spilling, assembly of 4th unit Powerhouse 1; Florence Lake - Dam construction, tunnel construction, diversion dam at Camp 63.]
photCL SCE 13 - vol 052

Colorado River
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Colorado River - Cataract Canyon on top looking southeast at dam site.
photCL SCE 02 - 07772

Colorado River
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Colorado River - Lower end of Boulder Canyon looking upstream
photCL SCE 02 - 09090

Colorado River
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Colorado River - Capacity & Area Curves for Boulder Canyon Reservoir.
photCL SCE 02 - 07607

Colorado River - Map of western states showing plans for hydro-electric development of the Colorado River
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Colorado River - Map of western states showing plans for hydro-electric development of the Colorado River - Boulder Canyon Unit, Diamond Creek Unit, Marble Canyon Unit and Glen Canyon Unit.
photCL SCE 02 - 05943