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Trail Conditions
  • Unknown
  • Snow Groomed
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  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
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  • Ideal
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  • Very Dry
Trail Flow (Ridden Direction)
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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.
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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
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  • 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.
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  • popular
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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
Winter Trails
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Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
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      Bear Hill is a decently sized network with a variety of trail difficulties. The majority of the trails are intermediate technical singletrack or wider doubletrack/carriage roads, with a few higher difficulty trails as well. The region encompasses two main hills, Bear Hill and Millstone Hill, one of which is home to the MIT Haystack Observatory. On the far side of the observatory is the trail Hell's Gate, one of the most difficult trails in the local area.
      There are many entrances to the trail network, but only some have areas to park. The primary entrance is at the end of Cow Pond Brook Rd (Near the soccer fields).
      Primary Trail Type: Cross-Country
      Bridge Street Parking Area google parking directions
      Access Info:
      Parking and entrances at the end of Wilson Way, Cow Pond Brook Road, and Bridge Street.
      Activities Click to view
      Region Details
      • 2
      • 8
      • 14
      • 1

      Region Status
      Open as of Mar 1, 2024
      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      25
      Trails Mountain Bike
      25
      Trails Hike
      25
      Trails Trail Running
      25
      Trails Snowshoe
      6
      Trails Nordic Ski
      6
      Total Distance
      13 miles
      Total Descent Distance
      6 miles
      Total Descent
      1,275 ft
      Total Vertical
      223 ft
      Highest Trailhead
      410 ft
      Reports
      42
      Photos
      3
      Ridden Counter
      550

      Photos of Bear Hill Mountain Bike

      21 |
      May 21, 2023 @ 3:09pm
      May 21, 2023
      trail: Quarry Loop
      26 |
      May 8, 2023 @ 5:56pm
      May 8, 2023

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      PurpleShamrockwishlisttrailactivity #51130259 and 2 more
      Apr 13, 2024 @ 1:00pm
      Apr 13, 2024
      amcnupdateregionactivity #49732163
      Mar 5, 2024 @ 6:33pm
      Mar 5, 2024
      amcnaddreportactivity #49656161 and 7 more
      Mar 3, 2024 @ 4:49am
      Mar 3, 2024
      Carpediem0881addreportactivity #43123050
      Aug 19, 2023 @ 9:13am
      Aug 19, 2023
      Jhxc80wishlistregionactivity #42979763
      Aug 15, 2023 @ 10:02am
      Aug 15, 2023

      Nearby Areas

      namedistance
      Wharton Plantation 12 13 21.2 km
      Elbow Meadow 21.3 km
      Skitapet Conservation Land 7 21.9 km
      The Promised Land2.2 km
      Groton Hills 16 42.5 km

      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike2513 miles1,276 ft6 miles223 ft
      #9,564#4,021342356
      Hike2513 miles1,276 ft6 miles223 ft
      #8,516#3,87642151
      Trail Running2513 miles1,276 ft6 miles223 ft
      #8,492#3,855428
      Snowshoe64 miles423 ft2 miles141 ft
      1
      Nordic Ski64 miles423 ft2 miles141 ft
      1
      • By amcn & contributors
      • Admins: MV NEMBA
      • #51336 - 690 views

      Downloading of trail gps tracks in kml & gpx formats is enabled for Bear Hill.
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