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ContributorsBurchard, R. W. (Cartographer) / Geological Survey (U.S.) (Issuing body)
Created1927
DescriptionPlan of the hydrography of a portion of the Colorado River between Black Canyon and the Arizona-Sonora Boundary
ContributorsBurchard, R. W. (Cartographer) / Geological Survey (U.S.) (Issuing body)
Created1927
DescriptionPlan of the hydrography of a portion of the Colorado River between Black Canyon and the Arizona-Sonora Boundary
ContributorsBurchard, R. W. (Cartographer) / Geological Survey (U.S.) (Issuing body)
Created1927
DescriptionPlan of the hydrography of a portion of the Colorado River between Black Canyon and the Arizona-Sonora Boundary
ContributorsBurchard, R. W. (Cartographer) / Geological Survey (U.S.) (Issuing body)
Created1927
DescriptionPlan of the hydrography of a portion of the Colorado River between Black Canyon and the Arizona-Sonora Boundary
ContributorsBurchard, R. W. (Cartographer) / Geological Survey (U.S.) (Issuing body)
Created1927
DescriptionPlan of the hydrography of a portion of the Colorado River between Black Canyon and the Arizona-Sonora Boundary
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ContributorsArizona. Department of Transportation (Issuing body)
Created2011-03
Description

The Arizona State Rail Plan (SRP) is the first comprehensive assessment of the stateís rail needs and was initiated in response to the increasing involvement by ADOT in freight and passenger rail issues. The SRP serves to identify the current rail system, to determine infrastructure needs, and to have rail

The Arizona State Rail Plan (SRP) is the first comprehensive assessment of the stateís rail needs and was initiated in response to the increasing involvement by ADOT in freight and passenger rail issues. The SRP serves to identify the current rail system, to determine infrastructure needs, and to have rail projects included in the state's long-range planning processes to improve regional and statewide safety mobility. The principle purpose is to convey the magnitude of the rail needs in the state and set forth a policy framework through which strategic actions can be taken to realize the full potential of passenger and freight rail transportation.

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Created1922-08-01
DescriptionCarl Hayden's party of three women and 12 men pose on the edge of the Grand Canyon.
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ContributorsCammerer, Arno B. (Author)
Created1923-10-03
Description

Letter from Arno B. Cammerer to Carl Hayden regarding the storage of dynamite in Shoski Canyon.

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Created1923-10-10
Description

Letter from R.P Gilliland to Carl Hayden regarding the sale of Bright Angel Trail (Ariz.) and construction of the President's Highway from Maine, AZ, to the Grand Canyon.