Pima County, in partnership with the National Park Service, has been an active participant in the development of a 70 mile segment of the trail. With the preparation of this Master Plan, Pima County has embarked on an active program to acquire the necessary rights-of-way and easements and to construct the Pima County segment of the national historic trail.

In this initial (interim) report, 21 different natural resource based outdoor recreational activities are identified. These activities are believed to represent the most popular natural resource based recreational activities in eastern Pima County. Based on the best information available, the document provides an overview and description of each of the noted activities. Information is also provided regarding the primary or preferred locations where the subject activity occurs. Data on participation in the individual activity is included where available. Use patterns, such as seasons when the activity is most prevalent, have been identified and trends related to changes in participation levels are discussed. Finally, issues related to the recreational activity vis-a-vis the goals of the Sonoran Desert Conservation Plan are also presented.