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MTB trails
United States
Virginia
Fairfax County

Sully Square

The best MTB trails around Sully Square

5.0

(17)

270

riders

20

rides

Mountain biking around Sully Square offers diverse trails that traverse a landscape blending urban and rural Virginia farmland. The region features stream valley trails and varied natural features, with some routes including unpaved sections suitable for mountain biking. Historical attractions, such as the Sully Historic Site, are integrated into the area's routes, adding cultural interest to the rides. The terrain provides options for a range of skill levels, from accessible paths to more challenging segments.

Best mountain bike trails around…

Last updated: May 17, 2026

5.0

(9)

105

riders

#1.

Lake Fairfax Park Trail System – Lake Fairfax Park loop from Reston Town Center

20.1km

01:33

170m

170m

Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.

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Moderate

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate
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Moderate mountain bike ride. Great for any fitness level. Advanced riding skills necessary.

Moderate

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.

Moderate

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.

Moderate
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Tips from the Community

Garymm755
February 28, 2026, Herndon Caboose Park

Cool place to stop.

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This library occupies a lovely, domed building, and is right next to the W&OD trail, which is friendly for both walkers and cyclists.

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Zachary
June 23, 2025, Trailside Park

A little pavilion with a bench here marks the entrance to Beth Miller Park, adjacent Trailside Park. If you follow the path from the W&O, you will come to a gazebo with a nice view over the pond.

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Trailside Park features well-maintained sports fields, pleasant surroundings, modern playgrounds, and spacious picnic areas. Adjacent to the Washington and Old Dominion Trail, it's a perfect spot for family outings, with convenient access to scenic trails and recreational facilities.

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This trail winds alongside the Difficult Run Stream before transitioning into the Difficult Run Trail towards the end of this segment. The views throughout the journey are breathtaking, giving you a continuous waterfront view as you cross the stream several times along the way.

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This stream branches off from the Potomac River, winding along the Difficult Run Trail. Its name isn't from the challenging nature of the trail itself, but rather from the sharp bend in the Potomac near its mouth, making it difficult for long boat-men to navigate.

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This is one of the points where the Cross County Trail crosses Difficult Run Stream. Depending on the amount of rainfall and the time of year, water levels may be elevated, so it's important to exercise caution.

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Sue
May 21, 2025, Lake Fairfax Park

Lake Fairfax Park spans 18 acres surrounding the beautiful lake of its namesake. It includes a water park, carousel, picnic areas, campgrounds, multi-use trails, and several playgrounds. The park is known to host several music festivals, including Lollapalooza and The HFStival.

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Frequently Asked Questions

How many mountain bike trails are available around Sully Square?

There are over 20 mountain bike trails available around Sully Square. These routes offer a mix of experiences, with 5 easy trails and 15 moderate trails, catering to various skill levels.

What kind of terrain can I expect on mountain bike trails in Sully Square?

The terrain around Sully Square offers a diverse experience, blending urban and rural Virginia farmland. You'll encounter stream valley trails, natural corridors, and some routes with unpaved sections that are well-suited for mountain biking. The area provides a mix of accessible paths and more challenging segments, including uneven terrain, small hills, and potentially rocks and roots on some trails.

Are there family-friendly mountain bike trails in Sully Square?

Yes, Sully Square offers several family-friendly options. There are 5 easy trails that are suitable for beginners or families looking for a more relaxed ride. The region's stream valley trails and parkland routes often provide smoother surfaces and less challenging gradients.

Can I bring my dog on the mountain bike trails in Sully Square?

Many trails in Fairfax County, including those around Sully Square, are generally dog-friendly, provided dogs are kept on a leash. However, it's always best to check specific park regulations or trail signage before heading out, as rules can vary.

What historical landmarks or attractions can I see while mountain biking in Sully Square?

Sully Square is rich in history, and many routes pass by significant landmarks. You can explore the Sully Historic Site itself, which dates back to 1794, featuring an old barn, farm buildings, and an heirloom garden. Other notable points of interest include Herndon Caboose Park and sections of the Washington & Old Dominion Trail, which offers a glimpse into the region's past as a rail line.

Are there any circular mountain bike routes in Sully Square?

Yes, several routes around Sully Square are designed as loops, offering convenient starting and ending points. Examples include the Lake Fairfax Park Trail System – Lake Fairfax Park loop from Reston Town Center, the Lake Fairfax Park Trail System loop from Reston, and the Mountainbike loop from Reston.

Where can I find parking for mountain bike trails near Sully Square?

Parking is generally available at trailheads and parks throughout the Sully Square area. For instance, routes starting from Lake Fairfax Park or Reston Town Center typically have designated parking facilities. It's advisable to check specific park websites or Komoot route details for precise parking locations before your ride.

What is the best time of year to go mountain biking in Sully Square?

The spring and fall seasons are generally considered the best times for mountain biking in Sully Square. The weather is typically mild, and the natural landscapes are vibrant, with blooming gardens in spring and colorful foliage in autumn. Summer can be warm and humid, while winter rides are possible but may require checking trail conditions for ice or mud.

Do I need a permit for mountain biking in Fairfax County or Sully Square?

For most public trails in Fairfax County, including those around Sully Square, a specific mountain biking permit is not typically required for general use. However, some specialized parks or trail systems might have their own rules or require passes for certain activities. It's always a good idea to consult the Fairfax County Park Authority website for the most current regulations.

Are there places to eat or drink near the mountain bike trails in Sully Square?

Yes, there are several options for refreshments near the mountain bike trails. For example, The Bike Lane Bicycle Shop and Brewery offers a convenient stop, and Green Lizard Cycling in Herndon is another cycling-friendly spot. The towns surrounding Sully Square, such as Reston and Herndon, also provide a variety of cafes, pubs, and restaurants.

What do other mountain bikers say about the trails in Sully Square?

The mountain bike trails in Sully Square are highly rated by the komoot community, with an average score of 5.0 stars from over 20 reviews. Riders often praise the diverse scenery, the blend of natural and historical elements, and the well-maintained paths that cater to different skill levels.

Are there any advanced mountain biking options in Sully Square?

While the majority of trails around Sully Square are rated as easy to moderate, some segments within the moderate routes can offer more challenging terrain, requiring good fitness and technical skills. For instance, the Cross Country Trail – Difficult Run loop from Wiehle–Reston East covers a significant distance and elevation, providing a more demanding experience.

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