In order to communicate effectively about land use in Pima County, we must understand that different individuals and groups of people have assigned meaning to places and landscapes in Pima County in accordance with their experiences and their mode of communication. Ten different cultures and their landscapes are described, providing a fascinating summary of the history of each group in the area.

Builds upon the "Biological Stress Assessment" through the identification of threats and stressors to watercourses within Pima County. It provides background on technical and water policy matters, describes potential and existing impacts to watercourses within Pima County, suggests options for reducing stressors, and outlines a number of issues for discussion withing each watershed planning unit.