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Created1986-04
Description

Cooperative National Park Resources Studies Unit for University of Arizona, effects on Glen Canyon Dam releases on Grand Canyon River trips, a technical report, vol. no. 16.

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ContributorsPeabody, Henry G. (Cartographer) / United States Geological Survey (Publisher)
DescriptionColor outline map of Grand Canyon National Park. Circa 1930.
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Created2009-12
Description

This plan was undertaken by the Arizona Department of Transportation Multimodal Planning Division Aeronautics Group to evaluate and recommend a terminal area layout to meet anticipated terminal area demands.

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ContributorsBass, W. W. (Author)
Created1924-04-12
Description

Letter from W.W. Bass to Carl Hayden expressing his difficulty in selling his canyon property.

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ContributorsBass, W. W. (Author)
Created1926-01-06
Description

Letter from W. W. Bass to Carl Hayden regarding the sale of Bass properties to the Santa Fe Railroad Company.