Matching Items (4)
Filtering by
- All Subjects: Grand Canyon National Park (Ariz.)
- Creators: Borkan, Ronald E.
- Creators: Continental Oil Company
- Creators: Cramton, Louis C.
- Creators: Leedshill-Herkenhoff, Inc.
ContributorsContinental Oil Company (Publisher)
Description
Script of a radio program titled, "Exploring America with Carveth Wells," published by the Conoco Travel Bureau. Circa 1932.
ContributorsCramton, Louis C. (Author)
Created1924-03-03
DescriptionSpeech by Representative Cramton in favor of the purchase of lands that contain Bright Angel Trail from Coconino County, and to eliminate private ownership of the trail.
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.
ContributorsLeedshill-Herkenhoff, Inc. (Publisher)
Created1985-03
Description
Grand Canyon National Park airport master plan, final report: inventory, aviation forecasts, demand/capacity analysis, airport requirements, airport plans, financial plan environmental review.