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Hoo-Koo-E-Koo Fire Road Trail – Bon Tempe Dam 🚵 loop from Fairfax

Routes

Mountain biking trails

Hoo-Koo-E-Koo Fire Road Trail – Bon Tempe Dam 🚵 loop from Fairfax

Hard

4.5

(9859)

19,685

riders

Hoo-Koo-E-Koo Fire Road Trail – Bon Tempe Dam 🚵 loop from Fairfax

04:05

41.6km

1,070m

Mountain biking

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

Last updated: June 22, 2026

Waypoints

Start point

Bus stop

Get Directions

13.3 km

Hoo-Koo-E-Koo Fire Road Trail

Highlight (Segment) • Trail

The Hoo-Koo-E-Koo Fire Road skirts the east side of Mount Tamalpais; its winding route features stunning scenic views of San Francisco Bay and the Marin peninsula. Some say the trail was named for a band of Coast Miwok Indians that lived nearby or because of Miwok middens discovered in the area.

Tip by

16.6 km

Old Railroad Grade: Blithedale to Gravity Car

Highlight • Trail

Bottom section of the most gradual route to Mt Tam summit, following the former tourist train that worked it's way up from Mill Valley til the 1930s

Tip by

18.4 km

Railroad Grade Fire Road Overlook to San Francisco

Highlight • Viewpoint

On clear days views open up along the trail across the bay and including the San Francisco skyline

Tip by

19.1 km

Flowy downhill section above Laguna Creek

Highlight • Trail

After looping around West Point the Railroad Grade trail snakes through open and tree-lined sections with fun curves.

Tip by

19.4 km

Mount Tamalpais West Point

Peak

19.5 km

Old Railroad Grade Trail (upper half) — Mt Tam

Highlight (Segment) • Trail

Old Railroad Grade trail follows the route of the railroad that reached the peak of Mount Tam from Mill Valley (and a spur to Muir Beach) between 1896 and 1930. This segment starts about mid-mountain at the site of an old station (notice the concrete "sidewalk" on the side of the trail), at the intersection with Gravity Car Trail and Hoo-Koo-Ee-Koo trail, just above the Double Bowknot (a series of four hairpin curves of the old railroad). Since this used to be a railroad, it has a very steady average grade of around 6%, making it easy to climb up on a bike. About 2 miles from the old station platform the trail passes West Point Inn ( komoot.de/highlight/215020 ) , with snacks, picnic tables and restrooms (also offering romantic cabins with killer views across the whole bay). For more of the history see en.wikipedia.org/wiki/Mount_Tamalpais_and_Muir_Woods_Railway

Tip by

29.0 km

Rocky Ridge Road 🚵

Highlight (Segment) • Trail

Great hiking and mountain biking on this gravel fire road in Mt Tamalpais watershed. It climbs first gradually and increasingly steep from the west side of the Bon Tempe Dam to the top of the ridge line above Bon Tempe Lake. It affords great views in all directions from the top, particularly across Alpine and Bon Tempe Lakes below, Northern Marin, and all the way across to the San Francisco Bay in the East.
For a sweet 2 hour 🚵 mountain bike loop with 4 lakes involving this trail segment check out komoot.de/highlight/153264
To avoid this steep climb you can follow the paved Sky Oaks Road between Bon Tempe Lake and Lake Lagunitas, or hike the (no bikes allowed) Shady Side Trail along Bon Tempe Lake.
See 🚵 Tour komoot.de/tour/9817832 for highlighted segments and labeled photos

Tip by

32.0 km

Bon Tempe Dam 🚵

Highlight (Segment) • Structure

Great hiking and mountain bike destination in Mt Tamalpais watershed. The dam holds the waters of Bon Tempe Lake above the Alpine Lake just below.
For a sweet 2 hour mountain bike loop with 4 lakes involving this trail segment check out komoot.com/highlight/153264

See 🚵 Tour komoot.com/tour/9817832 for highlighted segments and labeled photos

Tip by

32.7 km

Alpine Lake - Bon Tempe Dam

Highlight • Lake

Great stop for a photo

Tip by

41.6 km

End point

Bus stop

Way Types & Surfaces

Way Types

31.0 km

5.83 km

3.93 km

716 m

214 m

< 100 m

Surfaces

20.3 km

8.91 km

5.64 km

3.26 km

3.11 km

361 m

Elevation

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

Highest point (740 m)

Lowest point (30 m)

Weather

Today

Saturday 11 July

31°C

9°C

0 %

Additional weather tips

Max wind speed: 17.0 km/h

to get more detailed weather forecasts along your route

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Hoo-Koo-E-Koo Fire Road Trail – Bon Tempe Dam 🚵 loop from Fairfax

Hoo-Koo-E-Koo Fire Road Trail

Old Railroad Grade: Blithedale to Gravity Car

Railroad Grade Fire Road Overlook to San Francisco

Flowy downhill section above Laguna Creek

Old Railroad Grade Trail (upper half) — Mt Tam

Rocky Ridge Road 🚵

Bon Tempe Dam 🚵

Alpine Lake - Bon Tempe Dam

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