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ContributorsHarbin, Adrian (Author)
Created1937
DescriptionDescription of a four day trip to the Grand Canyon.
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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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Created1976
DescriptionDepartment of the Interior draft environmental statement of the proposed wilderness classification for Grand Canyon National Park.
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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.