Matching Items (4)
Filtering by
- All Subjects: Grand Canyon National Park (Ariz.)
- Creators: Borkan, Ronald E.
- Creators: Cooperative National Park Resources Studies Unit, University of Arizona
- Creators: McCarl, J. R.
- Creators: The Coconino Sun
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ContributorsThe Coconino Sun (Publisher)
Created1924-08-22
Description
Editoral attacking Senator Ralph Cameron for attempting to buy Bright Angel Trail.
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ContributorsMcCarl, J. R. (Author)
Created1927-11-15
Description
Letter from J. R. McCarl to Secretary of the Interior on concessions and contracts in the park.
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ContributorsGreenberg, Laura B. (Author) / Underhill, A. Heaton (Author) / Cooperative National Park Resources Studies Unit, University of Arizona (Publisher)
Created1986-03
DescriptionCooperative National Park Resources Study Unit of Arizona, a special report, v no. 4, improving viistor communciation in Grand Canyon National Park
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ContributorsUnderhill, A. Heaton (Author) / Borkan, Ronald E. (Author) / Battelle Memorial Institute. Technology Partnership Practice (Publisher)
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.