close
Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • 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
ContributeDetails
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

LEGEND
Trail Difficulties
  • Access Road/Trail
  • White
  • Green
  • Blue
  • Black
  • Double Black Diamond

Trail Report Status
  • Clear / Green
  • Minor Issue / Yellow
  • Significant Issue / Amber
  • Closed

  • Land Owner Overlay
  • Wilderness (typically no bikes in USA)
  • BLM (public)
  • USFS (Wildlife sanctuaries darker than usfs)
  • State land
  • Indigenous
  • Military
Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
  • Map Markers
  • trail Trail Head
  • photo Photo
  • place Directory Listing
  • region Riding Area
  • TTF TTF
  • Parking Parking
  • Viewpoint Viewpoint
  • Information Information
  • Warning Warning
  • Directions Directions
  • Sight Sight
  • Restrooms Restrooms
  • eBike Charging Point eBike Charging Point
  • Water Fountain/Source Water Fountain/Source
  • Gate Gate
  • Trail Sign Trail Sign
  • Table or Bench Table or Bench
  • Ladder Ladder
  • Stairs Stairs
  • Bridge Bridge
  • Camping Camping
  • Cabin Cabin
  • Lodge Lodge
  • Bear Cache Bear Cache
  • Dock Dock
  • Ranger Station Ranger Station
  • Summit Summit
  • Other Other
      The Greylock Glen area covers 1,000 acres in the shadow of Mount Greylock, which overlooks the scenic Berkshire County town of Adams. This area is in the process of being developed by the town and the Commonwealth in partnership with Berkshire NEMBA and the Thunderbolt Ski Runners as a model for outdoor recreation, environmental conservation, and education. The new development of this area will include hiking and other pedestrian trails, downhill backcountry skiing (including the historic Thunderbolt Ski Trail), single-track mountain biking and running trails, cross-country skiing trails, and snowmobile connections.
      Primary Trail Type: Cross-Country
      Bellows South Trailhead Parking google parking directions
      Region Details
      • 6
      • 10

      Region Status
      Open as of Oct 11, 2019

      Stats

      Global Ranking
      #5,673
      State Ranking
      #84
      Trails (view details)
      16
      Trails Mountain Bike
      16
      Trails Hike
      16
      Trails Trail Running
      16
      Total Distance
      14 miles
      Total Descent
      3,017 ft
      Total Vertical
      1,192 ft
      Highest Trailhead
      2,363 ft
      Reports
      25
      Photos
      5
      Ridden Counter
      239

      Photos of Greylock Glen Multi-Use Trail System Mountain Bike

      37 |
      Oct 26, 2018 @ 9:48am
      Oct 26, 2018
      trail: Moonwart
      23 |
      Jul 9, 2018 @ 4:45am
      Jul 9, 2018
      trail: Moonwart
      23 |
      Jul 9, 2018 @ 4:44am
      Jul 9, 2018
      trail: Moonwart
      25 |
      Jul 9, 2018 @ 4:44am
      Jul 9, 2018

      Videos of Greylock Glen Multi-Use Trail System Mountain Bike

      The Last Run 2014
      3:39 | 4365 | Nov 7, 2014

      Recent Trail Reports

      statustraildateconditionuserinfo
      Bittersweet
      Oct 11, 2019 @ 5:18am
      Oct 11, 2019
      Dry1000pacesLots of leaves down making the trail a...
      Little Dragon Tail
      Oct 11, 2019 @ 5:18am
      Oct 11, 2019
      Dry1000pacesLots of leaves down making the trail a...
      Wolf Tree (Thunderbolt Meadows)
      Oct 11, 2019 @ 5:18am
      Oct 11, 2019
      Dry1000pacesLots of leaves down making the trail a...
      Hidden Meadow Trail
      Oct 11, 2019 @ 5:18am
      Oct 11, 2019
      Dry1000pacesLots of leaves down making the trail a...
      Connector Trail
      Oct 11, 2019 @ 5:18am
      Oct 11, 2019
      Dry1000pacesLots of leaves down making the trail a...
      Bellows South to Wolftree
      Oct 11, 2019 @ 5:18am
      Oct 11, 2019
      Dry1000pacesLots of leaves down making the trail a...
      Greylock Glen loop
      Oct 11, 2019 @ 5:18am
      Oct 11, 2019
      Dry1000paces
      Above the Dragon
      Oct 11, 2019 @ 5:18am
      Oct 11, 2019
      Dry1000pacesLots of leaves down making the trail a...
      Connector
      Oct 11, 2019 @ 5:18am
      Oct 11, 2019
      Dry1000pacesLots of leaves down making the trail a...
      Chesire down
      Sep 20, 2019 @ 8:24am
      Sep 20, 2019
      Dry1000paces

      Activity Feed

      usernameactiontypetitledate
      user #12526771000pacesaddreportBittersweet and 8 more
      Oct 11, 2019 @ 8:20am
      Oct 11, 2019
      user #12526771000pacesaddreportChesire down and 2 more
      Sep 20, 2019 @ 10:29am
      Sep 20, 2019
      user #12526771000pacesaddreportWolf Tree (Thunderbolt Meadows) and 3 more
      Sep 18, 2019 @ 9:25am
      Sep 18, 2019
      user #114269brenthillierupdatetrailSlick Rock
      Jul 24, 2019 @ 9:17am
      Jul 24, 2019
      user #12526771000pacesaddkarmaGreylock Glen Multi-Use Trail System
      Jul 24, 2019 @ 4:37am
      Jul 24, 2019

      Recent Comments

      usernametypetitlecommentdate
      user #1346652meadowlarkreportConnector TrailThis trail is awesome! It Connects the Gould...
      Jun 5, 2019 @ 10:26am
      Jun 5, 2019
      user #1346652meadowlarktrailOld Adams Rd.This is not single track groomed mt bike...
      Jul 14, 2018 @ 6:56am
      Jul 14, 2018
      user #1346652meadowlarktrailOld Adams Rd.Old Adams Road starts out as Cheshire Harbor...
      Jul 14, 2018 @ 6:54am
      Jul 14, 2018
      user #1442660skadamustrailOld Adams Rd.Very few rewarding sections. Just rolling,...
      Nov 26, 2017 @ 9:05pm
      Nov 26, 2017

      Nearby Areas

      namedistance
      Windsor Lake 115.3 km
      Savoy Mountain State Forest 26.4 km
      Jiminy Peak Mountain Resort 2 28.4 km
      The Boulders 15 2 210.4 km
      Springside Park11.5 km
      • By aamcgee BERK NEMBA & contributors
      • Admins: BERK NEMBA
      • #20250 - 977 views
      • greylock glen multi-use trail system activity log | embed map of Greylock Glen Multi-Use Trail System mountain bike trails | greylock glen multi-use trail system mountain biking points of interest
      • subscribe print map 3d map donate to earn trail karma!

      Downloading of trail gps tracks in kml & gpx formats is enabled for Greylock Glen Multi-Use Trail System.
      You must login to download files.