Matching Items (4)
Filtering by
- All Subjects: Mining
- All Subjects: Hayden, Carl Trumball, 1877-1972
- All Subjects: Page, John H., 1877-1960
- Creators: Potter, A. F.
- Creators: Edwards, John H.
- Creators: Grand Canyon National Park, National Park Service, U.S. Department of the Interior
ContributorsPotter, A. F. (Author)
Created1910-08-15
Description
Letter from A. F. Potter to John H. Page referring his request to build a railway to the District Forester at Albuquerque, New Mexico.
ContributorsPotter, A. F. (Author)
Created1918-01-10
Description
Letter from A. F. Potter to Carl T. Hayden describing John H. Page's request to build a railway for the Canyon Copper Company as "impractical."
ContributorsEdwards, John H. (Author) / United States Department of the Interior (Publisher)
Created1926-04-02
DescriptionGrand Canyon National Park General Regulations.
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.