Seventh generation Arizonan Mauro Trejo spoke at a meeting of the Patagonia Museum board on Saturday about the history of the Santa Cruz River. A lifeline for the Tucson Basin for millennia and an integral part of Southern Arizona’s flourishing history, the Santa Cruz River has faced a multitude of changes and challenges over the last 200 years as the area evolved. Trejo’s talk addresses the river’s importance in the development of the region and where it stands today.