Looking for the best trails around Thornburg?

Explore the best rated trails in Thornburg, VA, whether you're looking for an easy walking trail or a bike trail like the Ox Road Sidepath and Gerry Connolly Cross County Trail . With more than 32 trails covering 275 miles you're bound to find a perfect trail for you. Click on any trail below to find trail descriptions, trail maps, photos, and reviews.

Recent Trail Reviews

Dahlgren Railroad Heritage Trail

Needs improvement

August, 2025 by layedbkchuck

Very rough surface

Indian Head Rail Trail

Multiple spots to stop. Most of the trail is shaded. There are some beautiful spots to stop on either end of the trail. Never over packed. I always see a ton of wildlife, which my kids love. It's not hard to bike, mostly flat.

August, 2025 by kailarice2013

Multiple spots to stop. Most of the trail is shaded. There are some beautiful spots to stop on either end of the trail. Never over packed. I always see a ton of wildlife, which my kids love. It's not hard to bike, mostly flat.

Lake Accotink Trail

Nice Trail

June, 2025 by jessicarobinson780

Starts at a dam and has some hills. It is not bike/stroller friendly. Hiking boots are better. Sneaker can be a challenge especially after rain. Dumps off into a neighborhood and you pick it back up. About a 4 mile loop.

Accordion

Mount Vernon Trail

Great Biking Trail!

April, 2025 by traillink user

This experience is based on parking at Mount Vernon and riding the trail for approximately 4 miles in one direction, then returning. The trail is primarily paved, with a scattering of wide wooden bridges to cross. You will ride an asphalt two-laned path through lightly forested areas as well as open areas, so you can enjoy the sun and the breeze coming off the Potomac River. The scenery is spectacular, and gives you the opportunity to forget that you are in Northern Virginia.

However, there are a lot of inclines and descents that some may find challenging. If all else fails, just get off the bike and walk, and pick up riding when the trail flattens out. Part of the route -- not the trail itself -- goes through a short tunnel, so the trail ends at the tunnel entrance, and picks up again once you go through and exit the tunnel. This means while in the tunnel, you are on the road, and not on a bike path. For children bike riders and hikers, extra precaution should be taken at this point. Other than that, absolutely stunning views of Northern Virginia and the Potomac River. Bald Eagles can be seen flying over the water as well. This trail is definitely a do-over!

Virginia Capital Trail

great trail

April, 2025 by dmason511

Great ride. Wish the trail had more bathrooms along the trail

Indian Head Rail Trail

Great Trail

March, 2025 by bf84rj842s

I’m a casual writer and I wrote the entire trail and one day.

Burke VRE Trail

easy walk, pretty walk

October, 2024 by eklic

Easy walk on an asphalt trail. Almost all in trees. 1.4 miles or so up, 1.4 miles back. Easy parking at both ends.

Lake Mercer Loop Trail

Late October is the ideal time for this trail

October, 2024 by eklic

The view from the dam, with the lake and fall colors is magnificent.

Gerry Connolly Cross County Trail

The entire Gerry Connolly trail

October, 2024 by eklic

I recently walked virtually every foot of the 40+ mile long Jerry Connolly Cross County trail, in both directions. This includes the part of the route which is not a trail at all, but a 2-mile long sidewalk along a busy road. I would start by driving to a starting point and walk about 5000 steps in one direction, stopping at a convenient point where I could park my truck nearby. Then, I walked back along the same trail. Most of the southern part of the trail, from the Occoquan river to Arlington Blvd is paved in asphalt. Almost all of the northern part, from the Oakmont rec center to Great Falls park is a rough trail. This part would be quite muddy after a rain. Most of the trail parallels a stream, from Difficult Run in the north, to Accotink Creek in the middle, to Pohick Creek in the south. Trail markers range from excellent in some parts to hardly noticeable in other parts. Having Google Maps on a phone app was super helpful at times when I accidently veered from the trail, or was at a point with a fork in the trail. There are several signs along the way with a map of the trail in the near vicinity. These were necessary and helpful when the trail came to an apparent end and the resumption point was several yards away. Almost all of the trail is an easy walk with just a few steep-ish ascents and descents. Most of the trail is really quite pretty. Overall, a very fulfilling experience for me.

Ashland Trolley Line

Closed

September, 2024 by kmwmason

The trail was marked No Trespassing. Private Property.

Lake Mercer Loop Trail

Enjoy the Silence

September, 2024 by danadominguez75

Great trail. Not too crowded. Lots of shade. We biked the loop with our six-year-old who rides a fixed gear bike. A few hills on the south side were a bit steep, so we did some walking, but the north side was much easier. Definitely going back.

Virginia Capital Trail

Just finished 4 days biking on trails here!! Beautiful scenery, mostly quiet trails.. a few seniors enjoying Virginia!!Karen from Canada

September, 2024 by khaveman6

Just finished 4 days biking on trails here!! Beautiful scenery, mostly quiet trails.. a few seniors enjoying Virginia!!Karen from Canada

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