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Bothin Marsh Preserve – Old Mine Trail (lower) 🌲 loop from Muir Beach

Bothin Marsh Preserve – Old Mine Trail (lower) 🌲 loop from Muir Beach

Hard

2.6

(15)

riders

Bothin Marsh Preserve – Old Mine Trail (lower) 🌲 loop from Muir Beach

04:29

49.9km

1,340m

Gravel riding

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.

Last updated: August 13, 2026

Tips

Includes a very steep uphill segment

You may need to push your bike.

After 49.6 km for 109 m

Waypoints

Start point

Parking

Get Directions

11.6 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 …

Tip by

19.8 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

19.9 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 …

Tip by

24.3 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

25.0 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

25.3 km

Mount Tamalpais West Point

Peak

25.4 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. …

Tip by

38.5 km

Pantoll Road in Mount Tamalpais State Park connects Panoramic Highway at the Pantoll Ranger Station/Campground trailhead ( bahiker.com/northbayhikes/pantoll.html ) with Ridgecrest Boulevard at Rock Springs trailhead. It is a mostly …

Tip by

40.8 km

Old Mine Trail (lower) 🌲

Highlight (Segment) • Trail

Old Mine Trail's lower section climbs from the intersection of Dipsea, Coastal, and Dear Park Rd trails at Cardiac Hill gently to the busy Pantoll trailhead/campground/Ranger Station at the intersection …

Tip by

49.9 km

End point

Parking

Way Types & Surfaces

Way Types

26.1 km

13.4 km

4.64 km

4.63 km

841 m

343 m

Surfaces

27.3 km

14.4 km

7.73 km

451 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 (0 m)

Weather

Today

Tuesday 1 September

18°C

14°C

21 %

Additional weather tips

Max wind speed: 19.0 km/h

to get more detailed weather forecasts along your route

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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Bothin Marsh Preserve – Old Mine Trail (lower) 🌲 loop from Muir Beach

Bothin Marsh Preserve

Old Railroad Grade Trail Gate Overlook

Railroad Grade at Fern Canyon & Summit

Railroad Grade Fire Road Overlook to San Francisco

Flowy downhill section above Laguna Creek

Old Railroad Grade Trail (upper half) — Mt Tam

Pantoll Road

Old Mine Trail (lower) 🌲

Nearby routes

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