Filtering by
- All Subjects: Hayden, Carl Trumbull, 1877-1972
- All Subjects: Mexico -- Foreign relations -- Treaties
- All Subjects: Pima County (Ariz.)
- Creators: Finney, E. C.
- Creators: Gomez, Marte R.
- Creators: Harvey, Lauren
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Letter from E. C. Finney to Carl Hayden regarding the cost of the Bright Angel Trail and an improved road between the town of Maine and the Grand Canyon.
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Four letters of correspondence about the purchase of Bright Angel Trail between A. E. Demaray, Acting Director of the Grand Canyon National Park; E. C. Finney, Department of the Interior First Assistant Secretary; Carl T. Hayden, Representative (AZ); and Stephen T. Mather, Director of the National Park Service.
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Reviews the planning efforts and analyzes the existing background reports, master plans, and management plans of parks and preserves owned by Pima County. A comparison of the planning documents, natural and cultural resources, threats and stressors, inventories, monitoring and research activities is presented.