The San Pedro River travels north into Arizona from across the border in Mexico. It’s the last free-flowing river in the ...

The Lower San Pedro River Watershed is one of the largest unfragmented landscapes in Arizona, second only to the Grand Canyon region, and the last remaining intact desert river system in southern ...

the San Pedro River is home to endangered species that rely on it to survive, including southwestern willow flycatchers, Huachuca water umbel, desert pupfish, loach minnows, spikedace, yellow-billed ...