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Nicasio Reservoir – Nicasio loop from Petaluma Downtown

Nicasio Reservoir – Nicasio loop from Petaluma Downtown

Hard

2.6

(3)

riders

Nicasio Reservoir – Nicasio loop from Petaluma Downtown

05:24

119km

1,310m

Road cycling

Hard road ride. Very good fitness required. 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 protected areas

Please check local regulations for:

Samuel P. Taylor State Park

Golden Gate National Recreation Area

Greater Farallones National Marine Sanctuary

Point Reyes National Seashore

Waypoints

Start point

Train Station

Get Directions

27.1 km

Nicasio Reservoir

Highlight • Lake

Sprawling, somewhat shallow reservoir lake filling the wide valley that looks like a hot desert most of summer and fall. Several branches are crossed by the road at high water levels, but not seen in many years.

Tip by

30.7 km

Nicasio

Highlight • Settlement

Handful of historic town buildings (some are a museum), church, ranch now a grocery store, around a large square sports field.

Tip by

36.3 km

Moon Hill Summit - Nicasio Valley Road

Highlight • Summit

Short steep climb from the South, more gradual from the north, to an overlook of the San Geronimo valley.

Tip by

37.1 km

Roy's Redwoods Open Space Preserve and French Ranch Open Space Preserve

Highlight • Forest

The two Open Space Preserves meet in this valley of stately redwood trees that's refreshingly cool even in summer, which is welcome before or after the climbs that go both directions in and out of this valley.

Tip by

57.6 km

Point Reyes Station

Highlight • Settlement

Black Mountain Bike Shop

Tip by

62.1 km

Bivale view - Tomales Bay Ecological Preserve

Highlight • Viewpoint

To the south of Bivale the Tomales Bay is shallow and silting up, large sections are now wetlands always above water, others rise above water at low tide. North from …

Tip by

74.7 km

Tomales Bay (GGNRA)

Nature Reserve

78.4 km

Nick's Cove and Boat Launch

Highlight • Beach

Small cove with a restaurant, long piers, and a public park with boat launch and nice shade.

Tip by

84.7 km

Tomales

Highlight • Settlement

Small roadside village along Coastal Hwy1, at the strategic intersections to Petaluma and Dillon Beach, with a great bakery, a general store, the oldest saloon in Marin, post office, two …

Tip by

119 km

End point

Train Station

Way Types & Surfaces

Way Types

71.0 km

47.3 km

769 m

115 m

< 100 m

Surfaces

119 km

173 m

< 100 m

Elevation

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

Highest point (220 m)

Lowest point (0 m)

Weather

Today

Saturday 30 May

22°C

9°C

0 %

Additional weather tips

Max wind speed: 19.0 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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Nicasio Reservoir – Nicasio loop from Petaluma Downtown

Nicasio Reservoir

Nicasio

Moon Hill Summit - Nicasio Valley Road

Roy's Redwoods Open Space Preserve and French Ranch Open Space Preserve

Point Reyes Station

Bivale view - Tomales Bay Ecological Preserve

Nick's Cove and Boat Launch

Tomales

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