Matching Items (6)
Filtering by
- All Subjects: Grand Canyon National Park (Ariz.)
- All Subjects: National parks and reserves (Ariz.)
- Creators: Grand Canyon National Park, National Park Service, U.S. Department of the Interior
- Creators: Underhill, A. Heaton
- Creators: American Journal of Science
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ContributorsMaxon, John H. (Author) / Campbell, Ian (Author) / American Journal of Science (Publisher)
Created1934-10-01
DescriptionExcerpt on the Archean Ripple Mark in the Grand Canyon.
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ContributorsGrand Canyon National Park, National Park Service, U.S. Department of the Interior (Publisher)
Created1977-09
DescriptionNatural resources management plan and environmental assessment for preserving natural resources within the park for use and enjoyment of visitors. The approach is guided by the concept of maintaining and perpetuating ecosystems rather than protecting or preserving individual features or favored species.
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ContributorsGrand Canyon National Park, National Park Service, U.S. Department of the Interior (Publisher)
Created1977-09
DescriptionThis addendum to the 1977 GCNP managment plan includes priority projects and planning for a 5-year period.
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ContributorsGrand Canyon National Park, National Park Service, U.S. Department of the Interior (Publisher)
Created1976-11
Description
Feral burro management plan and environmental assessment for Grand Canyon National Park in Arizona.
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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.