4.5
(2)
31
riders
3
rides
Gravel biking in Billerica State Forest offers diverse terrain and interconnected trail systems suitable for various skill levels. The landscape is characterized by predominant pine forests, wetlands, and grasslands, providing varied scenery. Trails often feature mixed surfaces, including historic dirt roads like the Old Middlesex Turnpike, alongside sections with more challenging terrain and elevation changes around features such as Gilson Hill. This area provides a classic gravel riding experience through its natural beauty and varied topography.
Last updated: October 6, 2026
4.5
(2)
12
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
2
riders
Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

4
riders
26.0km
01:39
120m
120m
Hard gravel ride. Great for any fitness level. You may need to push your bike for some segments of this route.
Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
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Popular around Billerica State Forest
The Great Meadows National Wildlife Refuge is a 12-mile wetland conservation area and home to a large variety of birds and turtles. A well-maintained trail circles the pond's perimeter with marshes and beautiful lotuses that bloom in summer. There are a few short trails and a path leading to the Concord River with benches, which are ideal for relaxing and taking in the scenery. It's a favorite spot for families and photographers, with an observation tower that provides excellent views. Parking is free but limited, with clean restrooms (closed in winter) and a port-a-potty available.
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The Old North Bridge is located in in Concord, Massachusetts, and is a historic site central to the American Revolution. It was here, on April 19, 1775, that colonial militia faced British soldiers in one of the first battles of the war and is now a part of the Minute Man National Historical Park. Visitors can walk across the bridge, explore nearby trails, and view the iconic Minuteman Statue. There are also interpretive plaques and regular guided tours.
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The terminus of the Minuteman Bikeway is at the northwest end of the 10-mile rail trail. Here, you'll find bathrooms, a drinking fountain, and a bike shop called Bikeway Source. Lots parking is available to start or end your adventure.
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This little 20-acre pond is named after the man who built its earthen dam in the early 1900s; his goal was to attract waterfowl. Nowadays most of the land around the pond has reverted to natural forest (with some agriculture nearby as well), resulting in an informal nature preserve of several hundred acres.
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It’s a must for bikers and hikers. Specially during Indian Sommer. Reachable by red line and ideally including in a round course by biking and a hiking weekend
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This is a multiple usage way, starts at the end of the red line ! A lot of historical and some other locations are along this way and at the moment you can see a bit of Indian Sommer. Quit, easy to use, take a deep breath and come down ! https://en.m.wikipedia.org/wiki/Minuteman_Bikeway
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Wonderful gravel way. Useable also for road bikes
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Billerica State Forest offers a selection of 3 dedicated no-traffic gravel bike trails, ensuring a peaceful and uninterrupted riding experience. These routes range in difficulty from moderate to difficult, catering to various skill levels.
The trails in Billerica State Forest feature diverse terrain, including historic dirt roads like the Old Middlesex Turnpike, as well as mixed surfaces of dirt, cinder, sand, and forest floor. While many sections are suitable for gravel bikes, some parts can be rough, offering a varied and engaging ride.
Yes, for those seeking a more demanding ride, the Pinnacle Hill – Shawsheen River Dam loop from Tewksbury is classified as difficult. This 26 km route includes varied terrain and significant elevation changes, providing a good test for experienced gravel bikers.
While the listed routes are moderate to difficult, the Reformatory Branch Trail, which is part of some loops, features mostly paved surfaces and is generally suitable for all skill levels. For a full family outing, consider sections of routes that utilize this trail, such as the Reformatory Branch Trail – Reformatory Branch Trail loop from Great Brook Farm State Park, keeping in mind its overall moderate difficulty.
Billerica State Forest is rich in natural beauty. You can expect to see diverse ecosystems including pine forests, wetlands, and grasslands. Keep an eye out for Gilson Hill, the second-highest point in Billerica, which offers dynamic routes. The forest also provides excellent opportunities for birdwatching and nature study due to its varied habitats.
The diverse ecosystems and varied terrain of Billerica State Forest make it enjoyable across multiple seasons. Spring and fall offer pleasant temperatures and vibrant scenery. While winter riding is possible, be prepared for potentially rougher conditions due to mixed surfaces like dirt, cinder, sand, and forest floor, which can be affected by snow and ice.
While there aren't always designated parking lots directly within certain parts of Billerica State Forest, access is possible from adjacent areas. Limited parking is available on Rangeway Road, and you can also access the trail system from places like Russell Mill Town Forest in Chelmsford.
Yes, several of the gravel bike routes in Billerica State Forest are designed as loops. For instance, the Reformatory Branch Trail – Reformatory Branch Trail loop from Great Brook Farm State Park and the Reformatory Branch Trail – Reformatory Branch Trail loop from Edith Nourse Rogers Memorial Veterans Hospital are both excellent loop options for exploring the area.
The gravel bike trails in Billerica State Forest vary in length. For example, the Pinnacle Hill – Shawsheen River Dam loop from Tewksbury is approximately 26 km, while the Reformatory Branch Trail – Reformatory Branch Trail loop from Edith Nourse Rogers Memorial Veterans Hospital extends to nearly 39 km, offering options for different ride durations.
The area is highly rated by the komoot community, with an average score of 4.5 stars. Reviewers often praise the diverse terrain, the interconnected trail systems that allow for extended rides, and the peaceful, traffic-free environment that makes for an excellent gravel biking experience.
Absolutely! Billerica State Forest's wetlands, grasslands, and forested areas create excellent opportunities for wildlife spotting and nature study. The forest is home to a wide variety of plant and animal species, making it an ideal spot for nature lovers to observe local fauna while riding.


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