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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Inadequate
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
Trail Flow (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%
  • bi-directional trail
  • no data
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
ATV/ORV/OHV Filter
Max Vehicle Width
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Radar Time
x Activity Recordings
Trailforks users anonymized public ridelogs from the past 6 months.
  • mountain biking recent
  • mountain biking (>6 month)
  • hiking (1 year)
  • moto (1 year)
Activity Recordings
Trailforks users anonymized public skilogs from the past 12 months.
  • Downhill Ski
  • Backcountry Ski
  • Nordic Ski
  • Snowmobile
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
Trails Deemphasized
Trails are shown in grey.
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      No description for Middlesex County (Northwest) has been added yet! Login or register to submit one.
      Region Details
      • 137
      • 13
      • 327
      • 272
      • 36
      • 1

      Stats

      Avg Trail Rating
      Trails (view details)
      884
      Trails Mountain Bike
      790
      Trails E-Bike
      19
      Trails Horse
      45
      Trails Hike
      860
      Trails Trail Running
      860
      Trails Dirtbike/Moto
      1
      Trails Observed Trials
      1
      Trails ATV/ORV/OHV
      1
      Trails Snowmobile
      1
      Trails Snowshoe
      198
      Trails Downhill Ski
      27
      Trails Backcountry Ski
      24
      Trails Nordic Ski
      44
      Total Distance
      381 miles
      Total Descent
      26,982 ft
      Total Vertical
      539 ft
      Highest Trailhead
      598 ft
      Reports
      2,735
      Photos
      305
      Ridden Counter
      66,491
      Sub Regions

      Popular Middlesex County (Northwest) Trails

      statustitledifficultyrating
      Yellow Trail
      Russell Mill Pond & Town Forest
      Wild Turkey
      Russell Mill Pond & Town Forest
      Pump Track
      Russell Mill Pond & Town Forest
      Upper White
      Russell Mill Pond & Town Forest
      Yellow Rabbit
      Billerica State Forest
      Orange Goose Loop
      Russell Mill Pond & Town Forest
      Purple Martin
      Russell Mill Pond & Town Forest
      Blue Heron Loop
      Russell Mill Pond & Town Forest
      Lower White
      Russell Mill Pond & Town Forest
      Coots Connector
      Russell Mill Pond & Town Forest
      Northern Loop
      Billerica State Forest
      Green Trail
      Russell Mill Pond & Town Forest
      Ducks Drop
      Russell Mill Pond & Town Forest
      Carbon Force
      Billerica State Forest
      Gilson Hill Loop
      Billerica State Forest

      Mountain Bike Routes

      titleratingdistance
      Great Brook Farm Intermediate Loop
      Great Brook Farm State Park
      12 miles
      Epic Trail Ride Boston to Northampton: Day 2 - Littleton to Wachusett
      Littleton
      47 miles
      Great Brook Farm Advanced Loop
      Great Brook Farm State Park
      14 miles
      LDT East
      Lowell
      6 miles
      Billerica State Forest 18 miler
      Russell Mill Pond & Town Forest
      14 miles
      Nobduro
      Nobscot Hill
      7 miles
      Groton Town Forest Wide Trails
      Groton Town Forest
      5 miles
      Groton Woods 7.6
      Groton Town Forest
      8 miles
      Lowell Dracut 10 without the swamp
      Lowell
      10 miles
      BCT Bike Route- Chelmsford to Concord
      Merrimack Valley NEMBA
      20 miles

      Recent Ride Log Activity in Region

      Today
      • 4 rides
      Yesterday
      • 2 rides
      Past Week
      • 55 rides

      Photos of Middlesex County (Northwest) Mountain Bike

      trail: Boombox
      3 |
      Dec 17, 2022 @ 6:35am
      Dec 17, 2022
      trail: Boombox
      6 |
      Dec 17, 2022 @ 6:35am
      Dec 17, 2022
      trail: Boombox
      7 |
      Dec 17, 2022 @ 6:35am
      Dec 17, 2022
      trail: Boombox
      6 |
      Dec 12, 2022 @ 11:55am
      Dec 12, 2022
      trail: Boombox
      8 |
      Dec 12, 2022 @ 11:54am
      Dec 12, 2022
      trail: Boombox
      4 |
      Dec 12, 2022 @ 11:54am
      Dec 12, 2022
      trail: Boombox
      3 |
      Dec 12, 2022 @ 11:54am
      Dec 12, 2022
      trail: Boombox
      2 |
      Dec 12, 2022 @ 11:54am
      Dec 12, 2022

      Videos of Middlesex County (Northwest) Mountain Bike

      Jimmy & Red, The wall
      trail: Red
      109 | May 9, 2021
      LDTF Night Ride
      trail: B Town
      0:10 | 141 | Oct 17, 2018
      May 28 a early morning Hot ride
      trail: Chicken
      2:42 | 280 | May 28, 2016
      Green Trail  Thunder Mountain MTB lift park
      11:31 | 201 | Jul 10, 2015
      THIS IS JAMAICA
      trail: Chicken
      5:00 | 30683 | Nov 4, 2014
      Russell Mill Pump Track

      0:44 | 595 | Oct 18, 2014

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #2865173JellycodaddkarmaActon
      Jan 26, 2023 @ 2:54am
      2 days
      user #1981885longshore5117riddentrailRed Trail
      Jan 18, 2023 @ 1:28pm
      Jan 18, 2023
      user #3269845JacksonSQc0eNwishlistrouteTour de Lowell Dracut Tyngsboro
      Jan 16, 2023 @ 6:48pm
      Jan 16, 2023
      user #761742rjc53addreportUpper Valley
      Jan 11, 2023 @ 2:09pm
      Jan 11, 2023
      user #2319210jonahkeyserlingwishlistrouteGreat Brook Farm Intermediate Loop
      Jan 9, 2023 @ 1:47pm
      Jan 9, 2023

      Recent Comments

      usernametypetitlecommentdate
      user #1364137TypeRKelleyreportWild TurkeyMake that two trees
      Oct 19, 2022 @ 8:17am
      Oct 19, 2022
      user #2644631bennsarrowtrailTrailBikes are prohibited from this trail according...
      Sep 21, 2022 @ 2:26pm
      Sep 21, 2022
      user #2644631bennsarrowtrailTrailBikes are prohibited from this trail according...
      Sep 21, 2022 @ 2:26pm
      Sep 21, 2022
      user #766481SofakingfastreportYellow RabbitAll clear
      Sep 14, 2022 @ 3:42pm
      Sep 14, 2022
      user #766481SofakingfastreportRoute 3 OverlookAll set. Thanks for the report.
      Sep 2, 2022 @ 11:18am
      Sep 2, 2022

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike788352 miles24,491 ft139 miles538 ft
      2912,7323042,146
      E-Bike1914 miles807 ft6 miles390 ft
      2,2021174
      Horse4516 miles2,064 ft7 miles456 ft
      43518
      Hike860375 miles24,862 ft147 miles538 ft
      72,717101,249
      Trail Running860371 miles24,797 ft146 miles538 ft
      2,7183698
      Dirtbike/Moto11 mile98 ft3,766 ft98 ft
      3093
      Observed Trials11 mile98 ft3,766 ft98 ft
      316
      ATV/ORV/OHV11 mile98 ft3,766 ft98 ft
      3095
      Snowmobile14,199 ft69 ft1,227 ft46 ft
      43
      Snowshoe19870 miles5,768 ft27 miles482 ft
      22331113
      Downhill Ski274 miles1,762 ft3 miles259 ft
      355
      Backcountry Ski247 miles1,640 ft4 miles430 ft
      245146
      Nordic Ski4417 miles2,277 ft8 miles482 ft
      3122184
      • By WillieJacobsz TRAILFORKS Trailforks NEMBA & contributors
      • Admins: NEMBA, NEMBAEXEC, BCT, JimBallantyne, brucerioux, pjahnige, mappermook, NEPM
      • #34817 - 1,033 views
      • middlesex county (northwest) activity log | embed map of Middlesex County (Northwest) mountain bike trails | middlesex county (northwest) mountain biking points of interest polygons

      Downloading of trail gps tracks in kml & gpx formats is enabled for Middlesex County (Northwest).
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