Santa Cruz River

The Santa Cruz River is a natural waterway in southern Arizona that flows roughly 180 miles from the Tucson Mountains through Tucson and into Mexico. Historically, it was a perennial river, flowing year-round, but now it often runs dry during much of the year due to water diversion for urban use and agriculture. The river's course supports diverse ecosystems, wetlands, and riparian habitats that are vital for local wildlife. Efforts are ongoing to restore and maintain the health of the Santa Cruz River, balancing environmental conservation with water demands of the surrounding communities.