General Information

Location: 4307 Briggs Street, Riverside, CA 92519

The Santa Ana River Watershed is Southern California’s largest watershed spanning over 100 miles and containing over 50 tributaries. San Bernardino, Riverside and Orange Counties all contain a portion of this 2,650 square mile watershed. This particular watershed is home to more than 4.8 million residents. Its headwaters are located high above the valley floors of the Inland Empire, in the peaks of the San Bernardino National Forest.