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Bike touring routes & trails

United States

California

Marin County

Lagunitas-Forest Knolls

Alpine Lake Dam – Twin Knolls loop from Lagunitas-Forest Knolls

Routes

Bike touring routes & trails

United States

California

Marin County

Lagunitas-Forest Knolls

Alpine Lake Dam – Twin Knolls loop from Lagunitas-Forest Knolls

Hard

3.3

(13)

riders

Alpine Lake Dam – Twin Knolls loop from Lagunitas-Forest Knolls

05:54

86.9km

1,400m

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: February 20, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

White Hill Open Space Preserve

Golden Gate National Recreation Area

Mount Tamalpais State Park

Samuel P. Taylor State Park

Greater Farallones National Marine Sanctuary

Waypoints

Start point

Bus stop

Get Directions

7.13 km

White Hill — Old Railroad Grade upper trailhead, Loma Alta

Highlight • Trail

To avoid the traffic when riding up (or down) White Hill, the highest elevation along Sir Francis Drake Boulevard from Fairfax, the old railroad grade is a more gradual, mostly smooth gravel trail alternative.

Tip by

20.4 km

Mount Tamalpais Watershed

Nature Reserve

23.9 km

Alpine Lake Dam

Highlight • Lake

A beautiful reservoir in the valley of Mt. Tam. It has a great climb up both ways to either get back to Fairfax or to summit Mt. Tam. This is …

Tip by

31.5 km

Twin Knolls

Highlight • Viewpoint

Twin Knolls offers a sweeping view of Stinson Beach from the height of the 7 Sisters, the informal name of Ridgecrest Blvd.

Tip by

34.4 km

View of San Francisco Bay from Mount Tamalpais

Highlight • Viewpoint

Mount Tamalpais State Park is a majestic area in the heart of Marin County, with sweeping hillsides covered in fantastic redwood forest, open grasslands, sturdy chaparral, and wooded oaklands. The …

Tip by

66.6 km

Point Reyes Station

Highlight • Settlement

Black Mountain Bike Shop

Tip by

72.4 km

Point Reyes–Petaluma Bridge

Highlight • Bridge

Usually some vendors at this intersection for some fresh fruit! Views of Black Mountain are beautiful.

Tip by

76.4 km

Cross-Marin Trailhead

Highlight • Trail

Northern end of the Cross-Marin Trail that follows the old rail route along Lagunitas Creek into Samuel Taylor State Park, and exits on the other side.

Tip by

81.7 km

Redwood Grove Group Picnic Area

Highlight • Rest Area

This large group picnic area is a lovely spot under a shady grove of towering redwoods that sits along Lagunitas Creek. There is piped drinking water and restrooms nearby, and …

Tip by

86.9 km

End point

Bus stop

Way Types & Surfaces

Way Types

47.6 km

32.4 km

3.40 km

2.75 km

614 m

211 m

< 100 m

Surfaces

72.7 km

13.7 km

492 m

129 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (620 m)

Lowest point (0 m)

Weather

Today

Tuesday 19 May

28°C

11°C

0 %

Additional weather tips

Max wind speed: 16.0 km/h

to get more detailed weather forecasts along your route

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Alpine Lake Dam – Twin Knolls loop from Lagunitas-Forest Knolls

White Hill — Old Railroad Grade upper trailhead, Loma Alta

Alpine Lake Dam

Twin Knolls

View of San Francisco Bay from Mount Tamalpais

Point Reyes Station

Point Reyes–Petaluma Bridge

Cross-Marin Trailhead

Redwood Grove Group Picnic Area

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