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Gravity Car Fire Rd Trail – Mount Tamalpais State Park loop from Mill Valley

Gravity Car Fire Rd Trail – Mount Tamalpais State Park loop from Mill Valley

Moderate

4.7

(1628)

14,911

riders

Gravity Car Fire Rd Trail – Mount Tamalpais State Park loop from Mill Valley

01:10

15.2km

370m

Gravel riding

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: June 8, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Blithedale Summit Open Space Preserve

Waypoints

Start point

Bus stop

Get Directions

124 m

Mill Valley Railroad Depot & Book Cafe

Highlight • Cafe

On the center square of Mill Valley the historic former Railroad Depot is now a convenient meeting place with outdoor and indoor seating, offering a variety of coffee, fresh sandwiches combined with books and magazines in the Book Cafe

Tip by

2.12 km

West Blithedale Avenue Trailhead

Highlight • Trail

The wood bridge across the creek marks the beginning of the Old Railroad Grade, today a wide fireroad

Tip by

5.04 km

Old Railroad Grade Trail Gate Overlook

Highlight • Viewpoint

Sweeping views south and east, all the way to SF, and Mt Tam right above behind you to the north. The bench is dedicated to the family who built their house in front of you 60 years ago.

Tip by

5.15 km

Railroad Grade at Fern Canyon & Summit

Highlight • Trail

Uphill from this intersection a portion of the Railroad Grade has been taken over by Fern Canyon Rd after the Mt Tam railroad closed. A short distance uphill on pavement brings you to the end of Fern Cyn. A bit before the end the Railroad Grade gravel forest road splits off again to the right. The Temalpa Trail that joins here is steep with stairs, not open to biking.

Tip by

6.84 km

Former Railroad and Gravity Car Station

Highlight • Historical Site

There are still remnants of old train platforms visible where the Gravity cars used to intersect with the Mt Tam Railroad.

Tip by

7.00 km

Gravity Car Fire Rd Trail

Highlight (Segment) • Trail

Gravity Car Fire Road is a short section of trail connecting the Mountain Home Trail Head at Panoramic Highway with the Old Railroad Grade going up to Mt Tam. While the train was in operation 1896-1930 a branch would go down to Muir Woods National Park. The first portion of that branch is now the Gravity Car Trail. It is very gradual and thus perfect for biking.

Tip by

9.10 km

Mount Tamalpais State Park

Highlight • Forest

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 views from Mount Tampais boast breathtaking vistas of the Pacific Ocean, San Francisco Bay and City, the Marin County Hills, Mount Diablo, and the East Bay. You can even see the Farallon Islands, 25 miles out to sea. If you're lucky, you can catch an occasional glimpse of the snow-capped Sierra Nevada Mountain Range, nearly 150 miles away. The Park is a haven for cyclists, hikers, wildlife watchers, or those who wish to find a beautiful spot for an afternoon picnic.

Tip by

15.2 km

End point

Bus stop

Way Types & Surfaces

Way Types

5.30 km

5.10 km

3.38 km

1.25 km

224 m

Surfaces

5.56 km

5.46 km

4.23 km

Elevation

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

Highest point (330 m)

Lowest point (0 m)

Weather

Wednesday 8 July

24°C

11°C

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Comments

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

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Gravity Car Fire Rd Trail – Mount Tamalpais State Park loop from Mill Valley

Mill Valley Railroad Depot & Book Cafe

West Blithedale Avenue Trailhead

Old Railroad Grade Trail Gate Overlook

Railroad Grade at Fern Canyon & Summit

Former Railroad and Gravity Car Station

Gravity Car Fire Rd Trail

Mount Tamalpais State Park

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