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Bothin Marsh Preserve – Horse Hill Bike Path loop from Alta

Bothin Marsh Preserve – Horse Hill Bike Path loop from Alta

Easy

3.1

(7)

riders

Bothin Marsh Preserve – Horse Hill Bike Path loop from Alta

00:58

21.1km

140m

Road cycling

Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: May 1, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Horse Hill Open Space Preserve

Waypoints

Start point

Bus stop

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5.29 km

Bothin Marsh Preserve

Highlight • Natural

This 106-acre preserve incorporates a 2-acre tidal wetland that’s a small reminder of the vast salt marshes that once surrounded San Francisco Bay. A quiet inlet at the north end …

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5.58 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 …

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6.95 km

Pickleweed Inlet crossing

Highlight • Bridge

Peaceful northern end of the Baywood Park wetland with a wooden pedestrian/bike bridge.

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8.34 km

Alto Tunnel deadend 😠 Mill Valley-Sausalito bike path

Highlight • Cycleway

The lovely flat Mill Valley-Sausalito bike path follows the former West Pacific railroad bed that continues through Corte Madera, but the Alto Tunnel (a 1882 rail tunnel abandoned in the …

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9.33 km

Horse Hill Bike Path

Highlight (Segment) • Cycleway

Paved bike trail along the Highway 101 corridor, lowest crossing of Horse Hill between Mill Valley and Corte Madera

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12.9 km

Corte Madera-Larkspur Path Trailhead

Highlight • Trail

Great park trail between the bay and the Mount Tamalpais parks

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16.7 km

Tiburon-Larkspur Bike Path & Corte Madera Path intersection

Highlight • Cycleway

On the east side of Redwood Highway the north-south trail 17 to Tiburon intersects with the Corte Madera Path: the merged trail heads partially on the shoulder of the busy …

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21.1 km

End point

Bus stop

Way Types & Surfaces

Way Types

15.6 km

3.30 km

2.01 km

253 m

Surfaces

16.7 km

3.36 km

998 m

< 100 m

Elevation

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

Weather

Today

Thursday 21 May

30°C

9°C

0 %

Additional weather tips

Max wind speed: 17.0 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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Bothin Marsh Preserve – Horse Hill Bike Path loop from Alta

Bothin Marsh Preserve

Bothin Marsh Preserve

Pickleweed Inlet crossing

Alto Tunnel deadend 😠 Mill Valley-Sausalito bike path

Horse Hill Bike Path

Corte Madera-Larkspur Path Trailhead

Tiburon-Larkspur Bike Path & Corte Madera Path intersection

Nearby routes

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