Lake Fairfax

Solid park but the description is not correct. There's a lot of trails in the park and you can definitely rack up some mileage staying inside it.  The CCT is accessible from the back side of the park.  It'll take you to Great Falls Park VA or  down to Occoquan going the other direction if you want to stretch your legs.

MORE maintains the trails and is constantly adding to and building new content.  This park is on the come up and it was already solid.

This is a nice trail system that appears to be very well maintained. I believe there's probably about 10 miles of trail which is mostly flowy with some roots and a few rock gardens. Nothing too technical or overly challenging but it's a blast at speed. Not a destination but worth checking out if you're in the area.

Whoa, how am I just discovering this place. It's pretty awesome. Why? Because it has longer more extended downs allowing faster speeds, banked turns, and drops and jumps and gnar- all pretty unique for DC Burbs. Unlike many trails in the area that are full of short speed killing ups after short downs, the ups and downs here tend to be longer. So the climbs are more less steeper grade but longer grinders, and the downs are longer allowing for you to really get your speed up and tend to have gnar and/or rollers or jumps which, with your speed, allow for some decent air. Also, unlike a lot of the trails around the area where they are full of speed robbing flat turns just as the trail is getting fun, here most of the turns are bermed. Not huge, but enough to allow you to keep your speed up. The trails are a mix of smooth with rollers and jumps or gnar with rocks and roots- probably the best gnar close to DC I've found yet. And the camp grounds is full of boulder and opportunities to work on your drops and jumps off of natural elements. On one side of the bathrooms is a nice little boulder strewn hillside that has a nice blind drop off a flat boulder to a step down (scout it, get the line in your head, and then just send it). Also has opportunities to go down some fairly steep gnar. The entire place is a great place to hone one's skills before heading west to the mountains and bike parks. And it's right off the Dulles Toll road in Reston!!! Awesome. Love it.

This is my favorite trail in the area and it's well maintained. Every time I ride here I find a different path from technical rocky sections to jumps. This trail is worth the drive.

Nice trail system that connects to the Difficult Run and Colvin Run trails... so you can really get some mileage if you want to!!

Great place to visit for some fun biking. It was a welcome break from the NCC.

very good for beginners.

Great trail, lots of fun interesting trails that overlap. Will head back again soon and do more exploring.

This was my first time riding any type of mountain bike trail. I had a blast! It's probably great for beginner/intermediate riders. My only complaints were the amount of huge roots in certain areas...but hey that can also add to the fun for some folks.

Nice trail. Not crowded with varied terrain. A fun ride for me and my son.

MTB Friendly park. Really a network of trails. Took me 3 separate rides to cover it all. A few trails are actually groomed. Great workout. Can get busy.

One of my favorite rides, or start of it at least. This trail connects to a network of miles and miles of trails including the CCT, difficult run, etc. My averages ride here is about 12 miles and it's never over the same route. Whatever you want, you can find in this network - climbs, technical challenges, stream crossings, jumps, etc. A solid ride after work on a weekday, or extended ride on the weekend.

This trail system can be confusing to identify if you're new to the area because there are a lot of trails right together including Colt's Neck, Colvin Run & Difficult Run and parts of the paved W&OD bike path. However, there are great loops that connect all these and are a really fun place to ride. The maps are a little hard to read at times so just keep taking trails until you get to know your way around.

We think the best way to do this system is to park at the Reston SkateQuest and take the single track from there. It's pretty hard to get lost. That part all ends up at the cricket fields or the picnic areas. You can double back to the rink or take the full loop to the W&OD which leads back to Michael Faraday road to SkateQuest.

Great after work or beginner trail!

Lake Fairfax is a nice little park in a great location that is slowly turning into a decent MTB destination. There is a lot of on-going work here, and trails have been dramatically improved in the last 2-3 years. There are some flowy sections, a few stream crossings and tough (double-track) climbs/descents, plus a couple rock gardens. The signs also indicate that there may be a pump-track in the future, but that seems optimistic.

While it's not the best trail in the DC area, it is a great local spot worth riding if you're in the area.

Pretty fun trail. Short. Not worth the trip to ride it alone. I recommend riding all of the trails here, then heading east to tack on Colvin Run and Difficult Run. You can end up with a really long ride if you continue down Difficult Run.

Great ride. Heavy traffic at times. Either selfishness or ignorance of trail erosion is getting annoying. Please don't ride wet trails.

Really awesome trails! Recently it has been changed to a more mountain bike friendly park with new/or modified mtb specific trails, jumps and berms. Not too difficult but a fun ride with some challenges. Leads into the Cross County trail and difficult run trail. Defiantly recommended it to anyone beginner and advance alike.

really fun trail. has some fun technical downhills and some uphills. fun to pick out lines. can get crowded at times and people going in every which direction with multiple trails people go on. i start at skate quest in reston and go past lake fairafax and then hop on the difficult run trail and get off at the w&od.

Ok, my buddy and I today took a start on Difficult Run, made our way to Colvin Run, and I then ended up at this trail. There are lots of roots, some climbs, crazy downhills that are fast, fun, and a little bit dangerous if not careful. We didn't start at Lake Fairfax so we didn't go from the direction, but if you do, definitely be careful.