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Routes
Road cycling routes
United States
California
Marin County
San Rafael

Nicasio Reservoir loop from Marin Civic Center

Hard

4.9

(4549)

6,520

riders

Nicasio Reservoir loop from Marin Civic Center

03:50

80.2km

980m

Road cycling

Embark on the Nicasio Reservoir loop from Marin Civic Center, a challenging racebike route that spans 49.8 miles (80.2 km). You will conquer a significant elevation gain of 3214 feet (980 metres) over an estimated 3 hours and 49 minutes, making this a difficult ride. As you cycle, you will…

Last updated: April 23, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

White Hill Open Space Preserve

Loma Alta Open Space Preserve

Samuel P. Taylor State Park

Martinelli Ranch (GGNRA)

Greater Farallones National Marine Sanctuary

Waypoints

A

Start point

Train Station

Get Directions

1

7.72 km

Fairfax

Highlight • Settlement

This town, nestled in the forested hills among unspoiled open space in Marin County, is a nice respite from the large nearby metropolis. It is a quirky, hip place with …

Tip by

2

20.9 km

Leo Cronin Fish Viewing Area

Highlight • Viewpoint

Lagunitas Creek offers some excellent opportunities to view salmon moving upstream

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3

37.8 km

Point Reyes Station

Highlight • Settlement

Black Mountain Bike Shop

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4

47.1 km

Nicasio Reservoir

Highlight • Lake

This shallow reservoir appeared as a consequence of the construction of the Seeger Dam in 1961. It contributes to making the landscape look beautiful out here.

Tip by

5

53.8 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

6

59.3 km

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

Tip by

7

60.1 km

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

8

60.9 km

San Geronimo

Highlight • Settlement

Slightly spread-out community nestled mostly along the creek valley with a friendly vibe and just a couple of eateries and convenience stores, though about twice a month volunteers offer a …

Tip by

9

65.2 km

Highest point between Fairfax and San Geronimo, the saddle was originally cut for the train in the 19th century, later widened for the highway. Can be busy but has a wide bike lane.

Tip by

B

80.2 km

End point

Train Station

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Way Types & Surfaces

Way Types

27.8 km

24.1 km

23.1 km

5.13 km

< 100 m

< 100 m

Surfaces

74.7 km

5.32 km

203 m

< 100 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 (200 m)

Lowest point (10 m)

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Weather

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Today

Sunday 24 May

22°C

11°C

0 %

Additional weather tips

Max wind speed: 19.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Where can I park to start the Nicasio Reservoir loop?

The route typically begins from the Marin Civic Center. You'll find parking available there, making it a convenient starting point for your ride.

Is this cycling route suitable for beginners?

This is a difficult road cycling route, covering about 80 kilometers (50 miles) with nearly 980 meters (3,200 feet) of elevation gain. It includes sustained uphill efforts with grades up to 7%. It's best suited for intermediate to advanced road cyclists with a good level of fitness, not beginners.

What kind of terrain can I expect on this cycling route?

The route is primarily paved with good road surfaces. You'll experience diverse West Marin County landscapes, including rolling hills, open grassy countryside, and sprawling farms. Expect picturesque lake views along Nicasio Reservoir, some partial tree cover, and views of a golf course. Traffic is generally light away from major arteries.

How long does it typically take to complete this cycling loop?

A typical ride on this 80-kilometer (50-mile) loop, including its significant elevation gain, takes approximately 3 hours and 50 minutes to complete.

What are the notable landmarks or scenic viewpoints along the way?

You'll pass through charming settlements like Fairfax, Point Reyes Station, and Nicasio. Scenic highlights include the Leo Cronin Fish Viewing Area, the expansive Nicasio Reservoir, and the Roy's Redwoods Open Space Preserve. You'll also encounter summits like Moon Hill Summit and White Hill Summit, offering great views.

What is the best time of year to cycle the Nicasio Reservoir loop?

The springtime is particularly beautiful, as the landscape transforms with lush greenery. Generally, the route offers a tranquil experience with light traffic, making it enjoyable in pleasant weather conditions. Always check the local weather forecast before you head out.

Is the Nicasio Reservoir loop dog-friendly?

This is primarily a road cycling route. While dogs are generally welcome in Marin County parks and open spaces on leash, an 80 km road cycling trip might not be ideal for their safety or comfort. It's best to leave your furry friends at home for this particular adventure.

Do I need any permits or pay fees to cycle this route?

No, you do not need any special permits or have to pay entrance fees to cycle this specific road cycling loop around the Nicasio Reservoir from Marin Civic Center.

Are there places to stop for food or drinks along the route?

Yes, as you pass through settlements like Fairfax, Point Reyes Station, and Nicasio, you'll find opportunities to stop for refreshments, cafes, or pubs.

Does this route connect with other cycling trails?

Yes, the Nicasio area is a hub for connecting to other popular cycling routes in West Marin. The route itself utilizes sections of the Sir Francis Drake Bike Route, Pt Reyes Petaluma Bike Route, and Cross Marin Trail, among others. This allows for longer and more adventurous rides if you wish to extend your journey.

What makes the Nicasio Reservoir loop a popular cycling destination?

This route is renowned among cyclists for its quality pavement, wide shoulders, and diverse, engaging scenery. The mix of relatively flat sections with significant, yet manageable, climbs provides a balanced challenge. Its tranquil environment with light traffic, especially outside major arteries, offers an immersive cycling experience through the natural beauty of Marin County.

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