San Bruno Mountain | |
---|---|
Highest point | |
Elevation | 1,319 ft (402 m) NAVD 88[1] |
Prominence | 1,114 ft (340 m)[2] |
Coordinates | 37°41′15″N 122°26′08″W / 37.687440278°N 122.435555036°W[1] |
Geography | |
Location | San Mateo County, California, U.S. |
Topo map | USGS San Francisco South |
Climbing | |
Easiest route | Trail hike[3] |
San Bruno Mountain is a fault-block horst in northern San Mateo County, California; its northern slopes rise in San Francisco. It is surrounded by San Francisco Bay and the cities of Brisbane, Colma, Daly City, and South San Francisco, and has played an important role in the history of all these communities.
Topped by a four mile long ridge, trails along the summit afford expansive views of the San Francisco Bay Area. Much of the mountain is in the 2,326-acre (941 ha) San Bruno Mountain State Park or the adjoining 83-acre (34 ha) State Ecological Reserve. Radio Peak (elevation 1,319 feet or 402 meters),[1] the highest point, serves the hilly Bay Area with several radio/TV broadcast towers.
It is not a part of the nearby Santa Cruz Mountains, whose northern-most peak on Montara Mountain lifts only eight miles from Radio Peak. The Santa Cruz range is on the Pacific tectonic plate, while San Bruno Mountain is on the North American Plate.
Distinct geology and weather set San Bruno Mountain apart from other California coastal areas.[4] The mountain soil provides habitat for rare and endangered plants (see below) and butterflies; the Callippe silverspot, Mission blue, and San Bruno elfin butterfly all inhabit mountain slopes.[5] The mountain is also a cradle for economically-useful plants; the low-growing evergreen "San Bruno Mountain Manzanita" (Arctostaphylos uva-ursi) has become widely used in drought-resistant landscaping.[6]
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