Matching Items (4)
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- All Subjects: Grand Canyon National Park (Ariz.)
- Creators: Borkan, Ronald E.
- Creators: Grand Canyon National Park
- Creators: R. P. Gilliland, R. P. Gilliland
- Creators: United States Government Printing Office
- Status: Published
ContributorsGrand Canyon National Park (Publisher)
Created1934-12
DescriptionPublication detailing the natural history of the Grand Canyon. Vol.9, No.9. Circa 1926-1934.
ContributorsR. P. Gilliland, R. P. Gilliland (Author)
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.
ContributorsUnited States Government Printing Office (Publisher)
Created1933
DescriptionHistorical overview of the Grand Canyon.
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.