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Routes
United States
California
Marin County
Larkspur

Alpine Dam – Marincello Trail loop from Larkspur

Routes
United States
California
Marin County
Larkspur

Alpine Dam – Marincello Trail loop from Larkspur

Hard

3.2

(18)

95

riders

Alpine Dam – Marincello Trail loop from Larkspur

07:53

100km

2,320m

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: October 9, 2026

Tips

Includes a segment in which cycling is not permitted

After 12.6 km for 97 m

Waypoints

A

Start point

Train Station

Get Directions
1

16.5 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

17.5 km

Mount Tamalpais West Point

Peak

3

17.7 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

39.3 km

Mount Tamalpais Watershed

Nature Reserve

5

42.8 km

Alpine Dam

Highlight (Segment) • Structure

Constructed in 1917 this dam forms Alpine Lake, which sites between Kent and Bon Tempe Lakes. The road across the top of the dam make it a great place to ride on a loop around the lake.

Tip by

6

56.3 km

Coast View Trail

Highlight (Segment) • Trail

Not only does Coast View Trail stage vistas of beautiful coastal hillsides and the ocean in front of you as you descend, but it also happens to be a very …

Tip by

7

70.1 km

Marincello Trail

Highlight (Segment) • Trail

Marincello Trail climbs from the Tennessee Valley parking/trailhead to the top of the ridge separating it from Rodeo Valley. While climbing out of Tennessee Valley it offers spectacular views of …

Tip by

8

77.0 km

Rodeo Valley Trail

Highlight (Segment) • Trail

Rodeo Valley Trail leads from SCA trail at the top of Wolfback Ridge down to Miwok Trail near Rodeo Lagoon. Only the lower section along the creek is open to bikes.

Tip by

9

79.7 km

Baker-Barry Tunnel

Highlight • Structure

This tunnel is one-way with a stoplight that lets each direction pass through for five minutes. It has a common name referred to by locals as "The Five Minute Tunnel," …

Tip by

82.7 km

Beach

Beach

11

89.3 km

Sausalito — Mill Valley Path

Highlight (Segment) • Cycleway

Excellent direct paved bike route along the 101 corridor but entirely in nature, through the Bothin Marsh wetlands.

Tip by

B

100 km

End point

Train Station

Loading

Way Types & Surfaces

Way Types

32.8 km

32.3 km

25.7 km

8.07 km

846 m

235 m

< 100 m

Surfaces

52.0 km

32.1 km

15.6 km

464 m

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Elevation

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)

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Weather

Powered by Foreca

Today

Thursday 22 October

20°C

12°C

80 %

Additional weather tips

Max wind speed: 14.0 km/h

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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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