A Living River: Charting the Health of the Upper Santa Cruz River, 2008

Date Published or Written


Claire Zugmeyer, Amy McCoy, Cheryl McIntyre

Wildland Threats


For thousands of years, people in the arid West have built their communities near rivers that supply drinking water, serve as navigation corridors, and support hundreds of plant, fish, and wildlife species. The Upper Santa Cruz is such a river, having sustained human communities for more than 3,500 years. From its headwaters in the San Rafael Valley in Arizona, the Upper Santa Cruz River flows south into Mexico where it completes a 25-mile U-turn and flows north back into the United States through Santa Cruz County, Arizona.