San Bruno Mountain – Old Ranch Rd Trail 🐄 San Bruno loop from San Bruno

Bike touring routes & trails

San Bruno Mountain – Old Ranch Rd Trail 🐄 San Bruno loop from San Bruno

Hard

2.8

(6)

riders

San Bruno Mountain – Old Ranch Rd Trail 🐄 San Bruno loop from San Bruno

02:14

31.0km

480m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 28, 2026

Tips

Includes segments that go up or down a series of steps

You may need to carry your bike.

After 104 m for 18 m

After 31.0 km for 25 m

Waypoints

Start point

Train Station

Get Directions

2.06 km

Historic Stone Bridge

Highlight • Bridge

Well-preserved historic bridge right along the bike trail, next to South Spruce Avenue

Tip by

2.79 km

Colma Creek - Sister Cities Park Trail

Highlight • Trail

Excellent car free paved bike trail following the Colma River almost up to Colma

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11.2 km

Guadeloupe Canyon Parkway

Highlight (Segment) • Trail

While it is a long and tiring hill to climb, wide bike paths on the shoulders of this big but usually relatively quiet road make the canyon on the west slope of San Bruno Mountain Park a safe route.

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13.5 km

San Bruno Mountain State & County Park

Highlight • Natural Monument

San Bruno Mountain Park is located in northern San Mateo County, California, adjacent to the southern boundary of San Francisco and borders the cities of Brisbane, South San Francisco, Colma …

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16.5 km

San Bruno Mountain

Highlight • Summit

Significant peak overlooking the south side of San Francisco and the northern edge of San Mateo county, with views from the Pacific to the SF Bay

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19.0 km

Old Ranch Rd Trail 🐄 San Bruno

Highlight (Segment) • Trail

Old Ranch Road is a gravel single track leading from the crest at the main San Bruno Mountain Park trailhead down to the San Francisco Bay, paralleling Guadalupe Canyon Parkway. parks.smcgov.org/san-bruno-mountain-state-county-park

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20.6 km

Guadeloupe Canyon Parkway east

Highlight (Segment) • Trail

Important east west connection across the peninsula just below San Francisco's Southern boundary on a fairly big but reasonably safe road across the mountain ridge with decent shoulders for biking on both sides.

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26.0 km

Living Giving Science Sculpture

Highlight • Monument

The sculpture depicts "living-giving science" according to its artist, Marco Cochrane. It stands 24 feet tall, and was erected in front of biotech company Genesis Towers in 2020 to represent …

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