Describes a number of streams within watershed planning units and prioritizing these streams according to their existing contribution to the overall conservation of biological diversity in Pima County. Over 50 percent of the priority streams within the County are found within the Altar Valley and the Cienega Rincon area.

This is the third session on Pima County's people, economy, land and water issues. Pima County, for 200 centuries, was the home of folks who lived in the land rather than on the land, and then we showed up.