Sonora River

Río Sonora (Sonora River) is a 402-kilometer-long river in Mexico. It lies on the Pacific slope of the Mexican state of Sonora and it runs into the Gulf of California. The Sonora River watershed covers 10,040 square miles (26,000 km2) of public land. Slopes range from steep orientations in the upper part of the watershed to more gradual topographies in the valleys. The Sonora River watershed is subdivided into six smaller watersheds.