Las Trampas Regional Wilderness offers 3,798 acres of wilderness and an expanded trail system that allows hikers and horseback riders to enjoy its remote and rugged areas. The park's size and terrain allow visitors a feeling of privacy and escape from urban hustle and bustle.

Stone outcroppings on Rocky Ridge are beautifully sculptured by the wind and colored by many lichen species. An entire day may be spent hiking the ridge and the Devil's Hole area. Wildflowers abound in season and are especially beautiful after a rain.

Las Trampas Ridge, reached via Chamise and Bollinger Canyon trails, is east of Bollinger Creek. The view from the ridge affords the sights of the Ygnacio, San Ramon and Amador valleys, Mt. Diablo, Carquinez Straits and other distant points of interest.

• Hike to Rocky Ridge, the 2,024 foot summit.