"A trek in 3,882-acre Las Trampas Wilderness promises you windswept ridges, rugged jigsaw rock outcroppings, dusty valleys, moist spring-fed ravines, and trails curving through sunny grasslands and under the shade of pungent bay trees. This hike also includes a couple of great calf-burning, heavy-breathing 1,000-foot climbs up Rocky Ridge and the Devil’s Bowl. But you are rewarded with breezy, expansive views of the San Francisco Bay, the city skylines, the distant Delta, and majestic Mount Diablo and its valleys. Look carefully around you and see the abundant wildlife of Las Trampas today and remains of animals, plants, and geological features that tell a story that’s about twenty-five million years old. This eTrail also includes suggested nearby attractions, camping & lodging, restaurants, and local outdoor retailers."