107 reviews of Sugarloaf Ridge State Park "What an awesome camping / hiking spot in the Bay Area! Did an overnight camping trip slightly last minute – they have a number of "walk-in" campsites that can’t be reserved online. Instead, they allow you… Ranger Station; picnicking; amphitheater; group camping by reservation. The ridgeline provides views of Mount Diablo, Shell Ridge, and Las Trampas Ridge. Featured Apps Camp & RV The…