2,444 ft
Distance
37 ft
Climb
-29 ft
Descent
00:05:40
Avg time

Knee Jerk Details

  • Activities
    • Mountain Bike
    • Hike
    • Trail Running
    • Snowshoe
    • Nordic Ski
  • Riding Area
    Vietnam Trail Network
    Milford, Massachusetts
  • Difficulty Rating
  • Trail Type
    Singletrack
  • Bike Type
    AM, XC
  • Direction
    Both Directions
    Popular in reverse
  • Climb Difficulty
    Blue
  • Physical Rating
    Moderate
  • Dogs Allowed
    Yes
  • eBike Allowed
  • TTFs on Trail
    Rock Garden
  • Global Ranking
    #7196 in Mountain Biking [+]
    • #51580 in Trail Running
    • #29262 in Hiking
    • #1754 in Snowshoeing
  • Local Popularity
    45 in Mountain Biking [+]
    • 40 in Trail Running
    • 35 in Hiking
    • 75 in Snowshoeing
    • 5 in Skiing

Super fun trail. Good use to bypass the mother of all Rock Gardens on Lower Three Ledgas.

Local Trail Association
Traditionally Indigenous Territory
More Stats for Knee Jerk bike trail trail
  • Altitude change
    8 ft
  • Altitude min
    350 ft
  • Altitude max
    385 ft
  • Altitude start
    377 ft
  • Altitude end
    387 ft
  • Grade
    0.3%
  • Grade max
    -15.9%
  • Grade min
    7.5%
  • Distance climb
    1,463 ft
  • Distance down
    410 ft
  • Distance flat
    571 ft
  • Avg time
    00:05:40
  • Avg reverse time
    00:08:37
  • view trail stats
Status:
on Apr 2, 2021
Variable
Avg: 5 (1 votes)

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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • 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
inches

Radar Time
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
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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      Directions to knee-jerk trailhead (42.168350, -71.496710)
      update trails status or condition

      Knee Jerk Trail Reports

      statusdatedescription
      Apr 2, 2021 @ 7:00am
      Apr 2, 2021
      reporter
      Jan 24, 2021 @ 9:17am
      Jan 24, 2021
      Tree across trail
      May 12, 2020 @ 4:37am
      May 12, 2020
      reporter
      Tree Cleared.
      Nov 29, 2019 @ 7:29am
      Nov 29, 2019
      Large tree down across trail, blocking trail
      Apr 1, 2019 @ 3:32am
      Apr 1, 2019
      reporter Good to go, usual wet spots only
      view all reports »

      Recent Ridelog Activity on Trail

      Past Week
      • 4 rides
      • 8 miles avg distance
      6 Months
      • 96 rides
      • 8 miles avg distance
      All
      • 320 rides
      •  

      Photos

      more »
      23 |
      Jan 24, 2021 @ 9:17am
      Jan 24, 2021
      26 |
      Nov 29, 2019 @ 7:30am
      Nov 29, 2019
      | 1 comments

      Routes with this trail

      titleratingdistance
      Vietnam Hall of Fame featured
      8 miles
      Vietnam Intermediate Introduction 1
      7 miles
      Vietnam 9 mile by Vman0001
      9 miles

      2 Reviews & Comments

      • + 0
      Geemius (Jun 18, 2020 at 13:52)
       The Ed Ed t I
      [Reply]
      • + 0
      Hermeshwy (Apr 24, 2021 at 9:12)
       Down tree
      [Reply]

      Post a Comment



      Videos

      more »
      5/6/21
      81 | May 6, 2021 , Milford
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