Matching Items (4)
Filtering by
- All Subjects: Grand Canyon National Park (Ariz.)
- Creators: Underhill, A. Heaton
- Creators: Akers, Charles H.
- Creators: Phelps, George
ContributorsAkers, Charles H. (Author)
Created1918-05-21
Description
Letter from Charles H. Akers to Carl Hayden expressing his support for the National Park bill.
ContributorsPhelps, George (Photographer) / Fred Harvey (Publisher) / John G. Verkamp (Publisher)
Description
Color postcard titled, "East From (Hopi) Rowe Point."
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
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.