Established in 1872, the Alum Rock Park is by far the oldest municipal-operated urban park in all of California. Located at a distance of just 6.3 miles (10.2 kilometers) from the heart of San Jose's urban surroundings, this oasis of greenery is clasped on the slopes of Diablo Range's verdant valleys. Spanning nearly 720 acres (291.37 hectares), the park's grounds are traversed by the roads and trails of Alum Rock Falls, Calaveras Fault, and Sierra, making every corner of its protected lands accessible for avid hikers. The park is dotted with classical wood-carved trail signs that add a rustic vibe to your overall outdoor experience. Wildlife includes red-tailed hawk, Cooper's hawk, turkey vulture, black-tailed deer, and mountain lions.