To facilitate development of the Environmental Impact Statement which must accompany the Section 10 multi-species conservation proposal, a series of issue papers were prepared. In Pima County, ranching is uniquely able to preserve the integrity of vast tracts of connected and unfragmented open space and wildlife habitat. This study reviews the effect of five alternative permit strategies on the County's ability to preserve unfragmented landscapes through conserving ranch lands.

Letter from Joseph J. Cotter to Carl Hayden detailing the approximate amount of patented land within the proposed borders of the national park. Thomas J. Croaff is mentioned in his belief that he owns half the land in the proposed area; however, Joseph J. Cotter disputes this claim. Ralph Cameron's mining interests in the park are also mentioned. Circa 1917.