Letter from Horace M. Albright to Carl Hayden requesting a formal submission from Coconino County concerning the Bright Angel Trail.

Letter from Field Assistant Horace M. Albright to Carl Hayden requesting letters to be drafted in regards to the grazing of sheep and cattle on national park lands. Bankhead and Henderson are singled out as not keeping to their permit restrictions.

Letter from Alf Dickenson to Carl T. Hayden about securing mining permits within the park.

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.