more stats
518 ft
Distance
15 ft
Climb
-7 ft
Descent
00:03:28
Avg time
10 ft
Altitude change
449 ft
Altitude min
468 ft
Altitude max
457 ft
Altitude start
469 ft
Altitude end
2%
Grade
-10.2%
Grade max
14.1%
Grade min
226 ft
Distance climb
112 ft
Distance down
167 ft
Distance flat
00:03:28
Avg time

Mostly Harmful Details

  • Activities
    • Mountain Bike
  • Riding Area
    Sawmill Hills
    Northampton, Massachusetts
  • Difficulty Rating
    Double Black Diamond Rate
  • Local Popularity
    70 in Mountain Biking
  • Global Ranking
    #186257 in Mountain Biking
  • Trail Type
    Singletrack
  • Bike Type
    AM
  • Direction
    Downhill Only
    Popular In Reverse
  • Trail Visibility
    Always easy to follow
  • Dogs Allowed
    Yes
  • eBike Allowed
    No
  • TTFs on Trail
    Rock Face
  • Year Opened
    2021

Technical A-Line down a steep rock face into a rock berm.

Local Trail Association
Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 3 rides
  • 9 miles avg distance
All
  • 36 rides
  • Last: Jun 12, 2026
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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Partial
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
Trail Flow (Ridden Direction)
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  • > 90%
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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
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  • Description & Photos
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Slope Aspect
Direction the slope faces
Flat N NE E SE S SW W NW
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        Directions to mostly-harmful trailhead (42.321340, -72.702410)

        Photos

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        Routes with this trail

        11
        Chartpack white down 22
        6 miles • 719 ft • 8 •
        This avoids the cutting in Sawmill as of Spring 22.
        10
        Group Loop
        6 miles • 787 ft • 7 •
        A good basic loop that from Chartpak. is optional.
        10
        Seven Miles from Chartpak
        7 miles • 861 ft • 8 •
        This route is seven miles long and mostly single track.

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        Nearby Trails

        Sawmill Hills

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        Frequently Asked Questions About Mostly Harmful

        ▼ Where is Mostly Harmful located?
        Mostly Harmful is located in Sawmill Hills, Northampton, Massachusetts, United States. It is part of the Sawmill Hills trail network. The trailhead is located at coordinates 42.32134, -72.70241.
        ▼ How hard is Mostly Harmful?
        Mostly Harmful is rated as Double Black Diamond difficulty. The average grade is 2%.
        ▼ What is the elevation gain for Mostly Harmful?
        Mostly Harmful has 15 ft of elevation gain. The trail has 7 ft of elevation descent. The elevation ranges from 449 ft to 468 ft.
        ▼ Is Mostly Harmful a point to point trail?
        Yes, Mostly Harmful is a point to point trail. The direction is Downhill Only. The trail type is singletrack.

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