Saguaro National Park encompasses two geographically distinct areas: Rincon Mountain District and Tucson Mountain District. Of the two, only Rincon Park has significant riparian habitat due to Tanque Verde Ridge. The scope of this study includes Rincon Creek, its tributary riparian areas and Tanque Verde Creek riparian tributary areas within or immediately adjacent to the Park. Both of these creeks have riparian resources that will likely be impacted by proposed development adjacent to the Park boundaries.

The purpose of the U.S. Highway 93 Corridor Area Plan is to recognize the unique character of the highway corridor and to encourage land use patterns that are consistent with the goals of the Mohave County General Plan, the residents and the property owners. The U.S. Highway 93 Corridor Area Plan, a component of the General Plan, covers approximately 430 square miles of unincorporated land in Mohave County.