Mount Tamalpais State Park is a California state park, located in Marin County, California. The primary feature of the park is the 2,571 ft (784 m) Mount Tamalpais. The park contains mostly redwood and oak forests. The mountain itself covers around 25,000 acres (101 km²). There are about 60 miles (100 km) of hiking trails, which are connected to a larger, 200 mile (300 km) network of trails in neighboring public lands. The park received 564,000 visitors in 2003. Muir Woods National Monument is surrounded by the state park.
From the peak of the mountain, visitors can see up to 25 miles (40 km), in a view that encompasses San Francisco, most of the North and East Bay, and the Farallon Islands. Occasionally, the Sierra Nevadas are visible, 125 miles (200 km) away.