About mountain biking in San Francisco County

San Francisco County, California has 37 named trails tagged for mountain biking, covering 45.4 miles, an average of 1.2 miles each. The longest is Lake Merced Bike Path, at 9.8 miles. 2 run 5 miles or longer.

What the mountain biking trails in San Francisco County are like

By length, 25 are under a mile, 10 run 1 to 5 miles, and 2 are 5 miles or longer. 3 are loops, ending where they start; the longest is Bayview Park Road, at 0.6 miles.

Every one carries a difficulty rating: 25 easy, 11 moderate, and 1 hard. Of the 36 with measured elevation, Golden Gate Bridge East Sidewalk climbs the most, about 547 ft.

All 37 mountain biking trails, longest first

Lake Merced Bike PathMTB9.8 mi Market to Ocean BeachMTB5.8 mi Car-Free JFKMTB3.5 mi San Francisco Crosstown Trail - Cycling - Section 3MTB3.4 mi 4th-IndianaMTB2.6 mi Potrero Avenue Bike RouteMTB2.3 mi Brannan Street Bike RouteMTB2.0 mi Ortega StreetMTB1.7 mi Herb Caen Way...HikeMTB1.5 mi Golden Gate Bridge West SidewalkMTB1.2 mi Golden Gate Bridge East SidewalkHikeMTB1.2 mi Bay Area Ridge TrailHikeMTB1.2 mi The WiggleMTB0.9 mi Historic TrailHikeMTB0.9 mi Golden Gate PromenadeHikeMTB0.8 mi Presidio PromenadeHikeMTB0.8 mi Mansell Multi-Use PathHikeMTB0.6 mi Park Boulevard TrailHikeMTB0.6 mi Bayview Park RoadHikeMTB0.6 mi Sutro Tower TrailHikeMTB0.4 mi Phil Arnold TrailHikeMTB0.4 mi Bay TrailHikeMTB0.4 mi Hunter's Point Power Plant TrailHikeMTB0.3 mi Ecology Trail (lower)HikeMTB0.3 mi Oak Street CyclepathHikeMTB0.3 mi Sunset Blvd Bike PathHikeMTB0.2 mi Battery East RoadHikeMTB0.2 mi McCovey Cove PromenadeHikeMTB0.2 mi Fulton StreetHikeMTB0.2 mi Crissy Field AvenueHikeMTB0.2 mi McDowell Road SouthwestHikeMTB0.2 mi Brazel Ave Multi-Use PathHikeMTB0.2 mi Martin Luther King Junior DriveHikeMTB0.1 mi Wawona StreetHikeMTB0.1 mi Nike RoadHikeMTB0.1 mi Christopher TrailHikeMTB0.1 mi Page StreetHikeMTB0.1 mi

← All San Francisco County trails

Trail geometry from OpenStreetMap contributors, licensed ODbL. Elevation from the USGS 3D Elevation Program. Compiled and published by Trailmonger · trail data last rebuilt October 25, 2026.