1,811 ft
31 ft
-64 ft
Avg time
Supporters, Builders, Maintainers & Land Managers of Marc Genberg Trail

Marc Genberg Trail Details

  • Activities
    • Mountain Bike
    • E-Bike
    • Hike
    • Trail Running
  • Riding Area
    Lake Fairfax Park
    Reston, Virginia
  • Difficulty Rating
  • Voted Difficulty
    Blue (1 vote)
  • Trail Type
  • Bike Type
    AM, XC
  • Trail Usage
  • Direction
    Both Directions
    Popular direction shown
  • Climb Difficulty
  • Physical Rating
  • Trail Visibility
    Always easy to follow
  • Dogs Allowed
  • eBike Allowed
    Yes up to Class 1
  • TTFs on Trail
  • Local Popularity
    90 in Mountain Biking [+]
    • 90 in E-Biking
    • 65 in Trail Running
    • 60 in Hiking
  • Year Opened
  • Land Manager
    Fairfax County Park Authority

This trail is dedicated to Marc Genberg, an active member of the mountain bike community, for his long-time support of the Lake Fairfax trail system. The trail descends from Southside with lots of quick turns, rollers, and a few fun squeezes between trees.

Local Trail Association
Traditionally Indigenous Territory
More Stats for Marc Genberg Trail mountain bike trail trail
  • Altitude change
    -34 ft
  • Altitude min
    300 ft
  • Altitude max
    363 ft
  • Altitude start
    363 ft
  • Altitude end
    328 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    538 ft
  • Distance down
    1,033 ft
  • Distance flat
    240 ft
  • Avg time
  • Avg reverse time
  • view trail stats
on May 26, 2021
Avg: 3.5 (4 votes)

view (1,850)
Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
Trail Ridden Direction
Trailforks scans users ridelogs to determine the most popular direction each trail is ridden. A good flowing trail network will have most trails flowing in a single direction according to their intension.
The colour categories are based on what percentage of riders are riding a trail in its intended direction.
  • > 96%
  • > 90%
  • > 80%
  • > 70%
  • > 50%
  • < 50%
Trail Last Ridden
Trailforks scans ridelogs to determine the last time a trail was ridden.
  • < 2 days
  • < 1 week
  • < 2 weeks
  • < 1 month
  • < 6 months
  • > 6 months
Trail Ridden Direction
The intended direction a trail should be ridden.
  • Downhill Only
  • Downhill Primary
  • Both Directions
  • Uphill Primary
  • Uphill Only
  • One Direction
Contribute Details
Colors indicate trail is missing specified detail.
  • Description
  • Photos
  • Description & Photos
  • Videos
Trail Popularity ?
Trailforks scans ridelogs to determine which trails are ridden the most in the last 9 months. Trails are compared with nearby trails in the same city region with a possible 25 colour shades. Think of this as a heatmap, more rides = more kinetic energy = warmer colors.
  • most popular
  • popular
  • less popular
  • not popular
Max Vehicle Width

Radar Time
      Directions to marc-genberg-trail trailhead (38.955160, -77.322100)
      update trails status or condition

      Marc Genberg Trail Trail Reports

      Recent Ridelog Activity on Trail

      Past Week
      • 34 rides
      • 9 miles avg distance
      6 Months
      • 509 rides
      • 11 miles avg distance
      • 986 rides


      no photos have been added for Marc Genberg Trail yet, add a photo.

      Routes with this trail

      LFX to WO&D to CCT to DR MTB Reverse Loop
      15 miles
      Lake Fairfax Race path race
      7 miles

      4 Reviews & Comments

      • + 2
      ErnieR MORE (May 5, 2019 at 12:12)
       Thank you Frank and Tony for designing and hosting 9 trail work days to build this trail in time for the dedication during MORE's NoVA Spring Fling.
      • - 1
      dfranks4226 (Jul 12, 2019 at 18:46)
       Doesn't flow well and not technical enough to make up for the lack of flow. I prefer all the other trails at this park other than the gravel road
      • + 3
      willniccolls (Jul 19, 2019 at 7:17)
       There is good flow to be found on this trail. We are working on it, there are some rollers that don't really roll, more like speedbumps, and the creek now needs work, but it's a great little addition. Hope you can make it out to help at the next trail day. Those of us involved in building it realize it isn't perfect but we don't have unlimited time or material to make it perfect. Over time it will be tweaked. Meanwhile watch for trail day announcements and enjoy this NEW trail!!
      • + 3
      frankraiti (Jul 25, 2019 at 14:36)
       Thanks for the comments, Will. We have been on a bit of a roll lately in creating speed bumps that were supposed to be rollers. Maya culpa! We'll get those reshaped in time. In my experience, it does take time to get a new hand-built trail to flow the way you want and it also requires a bit of skill. With a little bit of reshaping, though, the MGT has the line and contour to be an awesome, flowy trail. It will be a tighter flow, though, both horizontally and vertically, than the other trails in the park. That was a deliberate decision in the design. Once the temps drop back to reasonable levels for trailwork, we'll definitely be getting back to it. And the creek crossing was washed out on July 8 - that's something we'll be getting after very soon. Check the MORE and LF Bike Park facebook pages for trail work dates.

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      more »
      Lake Fairfax Park MTB | Reston, VA | Marc Gemberg
      1:27 | 83 | Oct 19, 2020 , Reston
      The New Marc Genberg Trail at Lake Fairfax
      1:20 | 82 | Oct 14, 2020 , Reston
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