4.5
(26)
572
riders
42
rides
Gravel biking in Fairfax County offers a diverse network of trails through varied terrain, characterized by extensive green spaces, woodlands, and river corridors. The region features numerous unpaved and natural surface paths, often following former railroad beds or winding through county parks. This landscape provides a mix of flat sections and gentle climbs, making it suitable for different gravel biking experiences. The Potomac River and its surrounding areas, including Great Falls, contribute to the scenic natural features available for exploration.
Last updated: April 30, 2026
9
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
13
riders
26.2km
01:55
110m
110m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

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3.0
(1)
28
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(5)
14
riders
20.4km
01:11
100m
100m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
13
riders
26.8km
01:50
130m
130m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
14
riders
34.3km
02:25
210m
210m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
10
riders
21.4km
01:39
120m
120m
Easy gravel ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
16
riders
27.2km
01:23
160m
160m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
5.0
(1)
16
riders
89.8km
04:33
550m
550m
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
13
riders
38.5km
01:58
240m
240m
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Great bike shop, coffee, and after ride refreshment. Beer and Wine.
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Lake Mercer Park Loop offers an enjoyable hiking and bike experience with its combination of paved and gravel paths. You’ll find occasional side trails that lead to the lake by dirt paths, all boasting stunning views. This easy trail features several potential exit points near residential areas. As of 2025, T-Mobile users may experience low but existing cell phone coverage, here. Among the points of interest are a couple of bridges crossing creeks, the lake itself, a large dam, and facilities conveniently located near the parking area. This trail attracts hikers, cyclists, and joggers alike. If you decide to bring your dog, be sure to keep it leashed at all times, as per park regulations, as there are other dogs. This loop is perfect for testing out new gear and for core strength training in preparation for larger trips.
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Lake Mercer Park Loop offers an enjoyable hiking and bike experience with its combination of paved and gravel paths. You’ll find occasional side trails that lead to the lake by dirt paths, all boasting stunning views. This easy trail features several potential exit points near residential areas. As of 2025, T-Mobile users may experience low but existing cell phone coverage, here. Among the points of interest are a couple of bridges crossing creeks, the lake itself, a large dam, and facilities conveniently located near the parking area. This trail attracts hikers, cyclists, and joggers alike. If you decide to bring your dog, be sure to keep it leashed at all times, as per park regulations, as there are other dogs. This loop is perfect for testing out new gear and for core strength training in preparation for larger trips.
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The creek’s banks are often lined with a mix of mature trees, and some interesting rock formations along the water's edge, worn smooth by years of flowing water.
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Bike shop with service area, beer, bathrooms, energy supplies and bike pumps!
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Fairfax County offers a wide selection of gravel biking routes, with over 50 tours available. These routes cater to various skill levels, from easy loops to more challenging rides with varied terrain.
You'll find a diverse range of terrain, from mostly unpaved paths and natural surface trails to sections of former railroad beds. Many routes wind through extensive green spaces, woodlands, and river corridors. For example, the Pennyfield Lock – Black Rock Mill loop from Broad Run Farms features moderate elevation changes through wooded areas, while the Green Lizard Cycling – Green Lizard Cycling, Herndon loop from Floris offers a mix of terrain with rolling hills.
Yes, Fairfax County has several trails suitable for families. The Burke Lake Park Trail offers a nearly 5-mile loop around the lake with natural trail paths and stonedust, making it accessible for gravel bikes. Additionally, many sections of the Cross County Trail (CCT) provide gentle, unpaved paths through parks and green spaces.
Many multi-use trails in Fairfax County, including sections of the Cross County Trail and Burke Lake Park Trail, are dog-friendly. However, it's always best to check specific park regulations or trail signage for leash requirements and any restrictions before heading out with your pet.
Fairfax County is rich in natural beauty. The Great Falls – Horseshoe Bend at Great Falls loop from American University leads through areas near the Potomac River, offering stunning views of the Great Falls of the Potomac River. Other scenic spots include the Bull Run Occoquan Trail with its waterfront views of the Occoquan Reservoir, and Mason Neck State Park, which offers protected shoreline and wildlife viewing.
Yes, many gravel routes in Fairfax County are designed as loops. Examples include the Pennyfield Lock – Black Rock Mill loop from Broad Run Farms and the Lake Accotink – Along Lake Accotink loop from Rolling Road. These circular routes allow you to start and finish at the same point, making logistics easier.
Spring and fall generally offer the most pleasant conditions for gravel biking in Fairfax County, with mild temperatures and beautiful foliage. Summer can be hot and humid, while winter may bring colder temperatures and occasional snow or ice, which can affect trail conditions. Always check local weather and trail reports before your ride.
Yes, many of Fairfax County's parks and trail systems offer designated parking areas. For instance, Burke Lake Park and Lake Accotink Park have ample parking. For specific routes, it's advisable to check the starting point details on komoot for parking information.
While many trails are best accessed by car, some areas of Fairfax County are served by Fairfax Connector buses, and the Washington Metro Silver Line extends into the county. Planning your route with public transport in mind may require some research into specific bus stops or Metro stations near trail access points. The Washington & Old Dominion (W&OD) Trail, for example, has several access points throughout the county that might be reachable via public transport connections.
Generally, you do not need a specific permit for recreational gravel biking on most public trails in Fairfax County. However, some regional parks or specific events might have their own regulations or fees. It's always a good idea to check the official Fairfax County Parks website for the most current information regarding permits or special access requirements.
Beginners can enjoy easier routes like the Horseshoe Bend at Great Falls – Swains Lock loop from Carderock, which is rated as easy. The Burke Lake Park Trail is also a great option for those new to gravel biking, offering a relatively flat and well-maintained surface. Look for routes marked as 'easy' on komoot for a comfortable introduction to gravel riding.
The gravel biking routes in Fairfax County are highly rated by the komoot community, with an average score of 4.8 stars from over 70 reviews. Riders often praise the extensive network of unpaved paths, the scenic riverfront trails, and the diverse greenway corridors that offer options for all ability levels.
Yes, you can find stunning waterfalls in Fairfax County. The trails near Great Falls Park offer views of the impressive Great Falls of the Potomac River. Other notable waterfalls in the area include Scott's Run Falls and Dead Run Waterfalls, which can be accessed via hiking or multi-use trails that may have gravel sections.
Experienced gravel riders seeking a challenge can explore routes that incorporate sections of the Lake Accotink Mountain Bike Trail, known for its challenging elements like sharp rocks, roots, and log jumps. Fountainhead Regional Park also offers a black diamond biking trail with fast, fun, and challenging single-track experiences that can appeal to advanced gravel bikers.
For those looking to hone their bike handling skills, Fairfax County offers pump tracks at Lake Fairfax Park and Brookfield Park. These dedicated facilities provide a great environment to practice maneuvers and improve your technique, which can be beneficial for tackling more technical gravel sections.


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