5.0
(16)
292
riders
20
rides
If you've ever tried to plan mountain biking around Sully Square, you know how quickly the options can become overwhelming. With so many trails crisscrossing this corner of Virginia, it's tough to tell which routes are genuinely worth your time and effort, and which are just filler. We get it, and we're here to cut through the noise.
Our komoot community has ridden, mapped, and reviewed countless miles here, so we've done the legwork to bring you a curated shortlist…
Last updated: June 1, 2026
5.0
(9)
104
riders
The Lake Fairfax Park loop from Reston Town Center offers a refreshing escape into nature, winding through shaded, wooded areas filled with ferns and towering trees. You'll enjoy scenic views…
11
riders
This mountain biking loop from Wiehle–Reston East offers a fantastic journey through varied terrain, from the rocky streambeds and wooded forests of Difficult Run to the dramatic river views at…

Sign up for free
13
riders
5.75km
00:29
50m
50m
The Lake Fairfax Park Trail System loop from Reston offers a refreshing escape into nature, even though it's just 1.5 miles from Reston Town Center. As you ride, you'll navigate…
13
riders
37.4km
02:02
200m
200m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
15
riders
Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary.
Get access to more routes and recommendations from other explorers.
Sign up for free
Already have an account?
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Start today with a free account
Your next adventure awaits.
Login or Signup
For biking, wet conditions will make this trail pretty tough going, and this ford in particular can be dicey if the stream is swollen from rain. Suggest walking a bike across on the stepping stones if you have to cross, and for e-bikes in particular, best to turn all power off until safely across... In rainy conditions, the stream can even overtop the stepping stones, so alternate routes might be better.
0
0
This library occupies a lovely, domed building, and is right next to the W&OD trail, which is friendly for both walkers and cyclists.
0
0
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.
0
0
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.
0
0
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.
0
0
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.
0
0
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.


Browse the best MTB trails in other regions.