This mountain state park is a total of 19,000 acres of oak woodland, grassland and chaparral with knobcone, digger and Coulter pine as well as wildflowers. It has a 3,849 foot summit. There is an extensive trail system for hiking, bicycles and horseback riding with wildlife and sandstone rock formations and small caves and fossils. The Fire Interpretive Trail and the Summit Trail above lower summit parking lot are closed to horses. There are two staging areas for equestrian use: Mitchell Canyon staging area is located on the north side of the mountain near Clayton and the Macedo Ranch area is located in the west side of the park in Alamo. Most other trailhead are suitable for unloading horses with the exceptions of those trailheads with only limited parking along road shoulders. Water troughs can be found throughout the park but are not maintained so carry water. The park has one approved horse camp, BBQ Terrace. It will hold upto 50 horses and 50 people. Reservations can be made through the regular camping reservation system. Reserve America 800-444-7275.
Mt Diablo (Walnut Creek)