Located in northern San Mateo County, most of San Bruno mountain lies within the 2,326-acre San Bruno Mountain State Park. The mountain provides habitat for several species of rare and endangered plants and butterflies. The endangered San Bruno Elfin Butterfly inhabits this mountain and a few other locations. The distinct Franciscan fog zone plants of San Bruno Mountain set it apart from other California coastal areas.
About San Bruno Mountain Park
Hiking is the most popular activity in the park. The main starting points are from the park’s entrance or from Radio Road at the mountain’s summit. Various neighborhood access points, including Crocker Road and Charter Street, also provide good starting points.
Sightseeing is also popular. Radio Road, leading up from near the main entrance, affords visitors the opportunity to drive to the summit of the Mountain and enjoy breathtaking views north to Mt. Tamalpais, south to Mt. Diablo, east to the Oakland foothills, and west to the Farallon Islands.
At the summit, visitors can see the remains of an old Nike Missile early warning radar site. This radar, with others around the bay area, was used to detect approaching enemy aircraft and direct the missiles to their target.
The park has family picnic sites near the park entrance. Tables, barbecue pits, drinking water, and a restroom are also available. The nearby meadow can be used for volleyball and frisbee. All facilities are accessible to people of all abilities.
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