From the Bay Area take I-580 E to the I-205 E turnoff, proceed through Tracy and north on I-5.
Take the Mossdale Exit, right on Mossdale to Manthey Road, turn right again and follow the signs to River Islands.
Driving South on I-5 to S. Manthey Rd. in Lathrop (Exit 460) Follow S. Manthey, left on Stewart Rd. to the Welcome Center.
Driving North on I-5 to Mossdale Rd. (Exit 460) right on Mossdale to Manthey Road, turn right again and follow the signs to River Islands.
River Islands is at the hub of three major freeways:
I-5, the major north-south route throughout California
I-205, which connects to the major employment centers in the
Tri-Valley and the Bay Area
Hwy 120, the route to the Gold Country and Yosemite
River Islands is about the same distance from San Francisco (70 miles), San Jose (68 miles) and Sacramento (58 miles) and is within easy reach of UC Merced, California State University Stanislaus and the University of the Pacific.
The community’s closest neighbor is Tracy, and is about 30 miles from the Tri-Valley cities of Livermore and Pleasanton.