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Routes
Mountain biking trails
United States
Virginia
Fairfax County
Reston

Rails to River Trail

Moderate

5.0

(2094)

18,058

riders

Rails to River Trail

00:38

7.38km

60m

Mountain biking

Get ready for a moderate mountain biking adventure on the Rails to River Trail, a 4.6-mile (7.4 km) route within Lake Fairfax Park. You'll navigate through shaded forested areas, enjoying picturesque scenery as you follow Colvin Run. The trail offers a mix of beginner-friendly sections and some technical elements, making…

Last updated: April 23, 2026

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3.46 km

Lake Fairfax Mountain Bike Trails

Highlight • MTB Park

Lake Fairfax Park offers more than ten miles of sweet singletrack for riders of all skill levels. On top of that the park has a pump track and several jump …

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7.38 km

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Way Types & Surfaces

Way Types

7.30 km

< 100 m

Surfaces

7.29 km

< 100 m

< 100 m

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Elevation

Elevation

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Weather

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Today

Tuesday 26 May

22°C

18°C

31 %

Additional weather tips

Max wind speed: 12.0 km/h

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This route was planned by komoot.

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Frequently Asked Questions

Is the Rails to River Trail suitable for beginners?

Yes, the Rails to River Trail is largely considered beginner-friendly and is recognized as the most beginner-friendly trail within Lake Fairfax Park. It's suitable for families, though it does include some moderate terrain, occasional steep or narrow pitches, and technical rock sections that can be walked if needed.

What is the terrain like on this trail?

The trail primarily features singletrack and doubletrack with swooping turns. You'll encounter rock gardens, rocky and rooty sections, and undulating terrain with short climbs and descents. A distinguishing feature is the numerous creek and river crossings, some with slippery rocks, and flowy sections with tabletops. Portions are also gravel.

Does the trail connect to other paths?

Yes, this trail serves as a crucial connector, linking the W&OD Trail to the Cross County Trail. The route also passes through sections of the Rails to River Trail, Ferlin's Folly, FlowJoe, and Jawbreaker.

Is the Rails to River Trail dog-friendly?

Yes, the trail is dog-friendly. Please ensure your dog is on a leash and you follow all park regulations.

When is the best time of year to ride this trail?

The trail winds through forested areas, providing ample shade, which makes it particularly pleasant for summer rides. However, the frequent creek crossings can be more challenging after heavy rains, as wet tires may reduce traction on subsequent rocky sections.

Where can I park to access the Rails to River Trail?

The Rails to River Trail is located within Lake Fairfax Park in Reston, Virginia. Parking is available within the park itself, providing convenient access to the trailhead.

Are there any fees or permits required to access Lake Fairfax Park or the trail?

Access to Lake Fairfax Park, where the Rails to River Trail is located, may involve entrance fees depending on the season or specific park events. It's advisable to check the official Lake Fairfax Park website for current fee schedules and any permit requirements before your visit.

What kind of scenery can I expect along the route?

You'll ride through picturesque forested areas that offer plenty of shade. The trail follows Colvin Run and traverses areas with fields of ferns and mature, towering trees, including a section designated as a wildlife sanctuary.

Are e-bikes allowed on the trail?

Yes, the trail is accessible to Class 1 e-bikes, allowing for a wider range of riders to enjoy the route.

What are some unique features or challenges on the trail?

A distinguishing feature is the numerous creek and river crossings, some of which can be awkward or involve slippery rocks, adding an exciting challenge. There are also flowy sections that include tabletops, contributing to a fun and engaging ride.

How long does it typically take to complete the Rails to River Trail?

The route is approximately 7.4 km long and typically takes around 38 minutes to complete by mountain bike, depending on your pace and how often you stop.

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