Phoenix Lake – Alpine Lake - Bon Tempe Dam loop from Fairfax
Phoenix Lake – Alpine Lake - Bon Tempe Dam loop from Fairfax
2.8
(26)
90
riders
Phoenix Lake – Alpine Lake - Bon Tempe Dam loop from Fairfax
02:18
27.4km
450m
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: May 1, 2026
Waypoints
Start point
Bus stop
Get Directions
607 m
San Anselmo-Fairfax Bikeway
Highlight (Segment) • Cycleway
Tip by
5.69 km
Natalie Coffin Greene Park 🌳 Ross
Highlight • Rest Area
Tip by
6.54 km
Phoenix Lake, Dibley / Shaver Grade Rd Trail Junction
Highlight • Lake
Tip by
6.83 km
Phoenix Lake
Highlight • Lake
Tip by
8.83 km
Pilot Knob Trail
Highlight • Trail
15.4 km
Bon Tempe Lake
Highlight • Lake
Tip by
16.3 km
Sky Oaks Road (junction with Shaver Grade Road)
Highlight • Trail
Tip by
17.2 km
Alpine Lake - Bon Tempe Dam
Highlight • Lake
Tip by
27.4 km
End point
Bus stop
Way Types & Surfaces
Way Types
14.7 km
5.74 km
3.61 km
3.25 km
< 100 m
< 100 m
Surfaces
13.3 km
10.5 km
3.43 km
131 m
Sign up to see more specific route details
Sign up for free
Elevation
Highest point (300 m)
Lowest point (10 m)
Sign up to see more specific route details
Sign up for free
Weather
Powered by Foreca
Today
Saturday 27 June
23°C
13°C
14 %
Additional weather tips
Max wind speed: 23.0 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.
Description
If you're looking for a touring cycling route that truly earns its 'difficult' rating, the Phoenix Lake – Alpine Lake - Bon Tempe Dam loop from Fairfax delivers. This challenging 17.0-mile (27.4 km) ride packs in 1478 feet (450 metres) of elevation gain, taking around 2 hours and 18 minutes. It's a rewarding journey for experienced cyclists ready for varied terrain and stunning lake views.
What to expect on Phoenix Lake – Alpine Lake - Bon Tempe Dam loop from Fairfax
Expect a ride that keeps you on your toes, transitioning from shaded paths under redwoods and oaks to more open, sunny landscapes. You'll pass by the clear waters of Phoenix Lake, Alpine Lake, Bon Tempe Lake, and Lake Lagunitas, with the impressive Bon Tempe Dam offering panoramic views of the lakes and Mount Tamalpais. Be ready for varied terrain, including significant climbs like Fish Grade, and some unpaved sections where you might need to push your bike. This loop is definitely for those with very good fitness looking for a substantial touring cycling challenge.
Planning your visit
The trail is easily accessible from Fairfax, making it a convenient option for local cyclists. The weather is generally mild, making it pleasant for cycling year-round, with shaded sections providing relief in summer and vibrant foliage in the fall. Late spring is particularly beautiful when wildflowers like red ribbon clarkia are in bloom.
Trail details
- Distance: 17.0 miles (27.4 km)
- Elevation gain: 1478 feet (450 metres)
- Difficulty: difficult
- Estimated time: 2 hours and 18 minutes
Comments
Want to know more?
Sign up for a free komoot account to join the conversation.
Sign up for free