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Tennessee Valley Trailhead – Bothin Marsh Preserve loop from Mill Valley

Tennessee Valley Trailhead – Bothin Marsh Preserve loop from Mill Valley

Hard

4.7

(1930)

18,083

riders

Tennessee Valley Trailhead – Bothin Marsh Preserve loop from Mill Valley

03:20

37.7km

920m

Gravel riding

Hard gravel 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 30, 2026

Tips

Cycling is not permitted along parts of this route

After 15.9 km for 55 m

After 32.3 km for 265 m

Waypoints

Start point

Bus stop

Get Directions

2.15 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

5.07 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

5.18 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

21.3 km

Tennessee Valley Trailhead

Highlight • Parking

The paved Tennessee Valley road ends here at this popular trailhead, deep in the Marin Headlands. A central junction of several trails heading north or south along the Miwok or other hilly trails, or flat down to the beach

Tip by

34.7 km

Bothin Marsh Preserve

Highlight • Natural

This tidal sanctuary runs along the Mill Valley-Sausalito Pathway and the Charles F. McGlashan Pathway. More than 400 species of migratory birds rest here after their long flights, and if you pass through in the early morning or late evening, the sunrises and sunsets reflect beautifully on the surface of this 106-acre marsh.

Tip by

37.7 km

End point

Bus stop

Way Types & Surfaces

Way Types

22.5 km

4.92 km

4.04 km

3.37 km

2.83 km

105 m

Surfaces

23.4 km

8.95 km

3.35 km

1.40 km

648 m

< 100 m

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

Today

Monday 25 May

21°C

10°C

5 %

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.

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Tennessee Valley Trailhead – Bothin Marsh Preserve loop from Mill Valley

West Blithedale Avenue Trailhead

Old Railroad Grade Trail Gate Overlook

Railroad Grade at Fern Canyon & Summit

Tennessee Valley Trailhead

Bothin Marsh Preserve

Nearby routes

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