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Bon Tempe Lake & Dam – Alpine Lake - Bon Tempe Dam loop from San Anselmo

Routes

Bike touring routes & trails

Bon Tempe Lake & Dam – Alpine Lake - Bon Tempe Dam loop from San Anselmo

Hard

4.8

(1006)

8,673

riders

Bon Tempe Lake & Dam – Alpine Lake - Bon Tempe Dam loop from San Anselmo

04:30

48.1km

1,020m

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: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

White Hill Open Space Preserve

Loma Alta Open Space Preserve

Waypoints

Start point

Bus stop

Get Directions

1.21 km

San Anselmo-Fairfax Bikeway

Highlight (Segment) • Cycleway

This bikeway offers a better alternative to the much busier Center Boulevard, which does not have a shoulder and an even better route than the Sir Francis Drake Blvd highway. …

Tip by

9.41 km

Sky Oaks Road (junction with Shaver Grade Road)

Highlight • Trail

At this point on Sky Oaks Road, there is a junction with Shaver Grade Road, which connects with a dense network of trails and dirt roads near Bald Hill in …

Tip by

10.4 km

Bon Tempe Lake & Dam

Highlight • Lake

Wide earthen dam with a great gravel trail crossing. From the top of this dam excellent views of the Bon Tempe Lake, and down across Alpine Lake at a lower elevation.

Tip by

10.9 km

Alpine Lake - Bon Tempe Dam

Highlight • Lake

Great stop for a photo

Tip by

15.5 km

Pine Mtn Ridge

Highlight • Climb

This ridge is the culmination of the first major climb segment coming from Fairfax. The road then drops to the west to cross Alpine dam, before it climbs the Bolinas ridge.

Tip by

30.0 km

Gary Giacomini Open Space Preserve

Nature Reserve

37.6 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

38.5 km

Fairfax Falls 🌊

Highlight • Waterfall

Best appreciated after winter rainfall, this waterfall is right along Old White Hill Grade trail. If surprised by a shower the massive pipe channeling the usually small trickle of water …

Tip by

41.2 km

Glen Fire Rd Trailhead 🌳

Highlight • Trail

48.1 km

End point

Bus stop

Way Types & Surfaces

Way Types

29.8 km

7.28 km

5.45 km

3.25 km

1.98 km

441 m

Surfaces

30.3 km

15.3 km

2.52 km

Elevation

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

Highest point (510 m)

Lowest point (10 m)

Weather

Today

Saturday 23 May

21°C

12°C

11 %

Additional weather tips

Max wind speed: 21.0 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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Bon Tempe Lake & Dam – Alpine Lake - Bon Tempe Dam loop from San Anselmo

San Anselmo-Fairfax Bikeway

Sky Oaks Road (junction with Shaver Grade Road)

Bon Tempe Lake & Dam

Alpine Lake - Bon Tempe Dam

Pine Mtn Ridge

White Hill — Old Railroad Grade upper trailhead, Loma Alta

Fairfax Falls 🌊

Glen Fire Rd Trailhead 🌳

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