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6.1 miles
Distance
787 ft
Climb
-782 ft
Descent
612 ft
High Point
3 ft
Altitude change
249 ft
Altitude min
249 ft
Altitude start
253 ft
Altitude end
-26.7%
Grade max
19.9%
Grade min
3 miles
Distance climb
3 miles
Distance down
3,783 ft
Distance flat
A good basic loop that from Chartpak.
Mostly Harmful is optional.
Detailed Description
Group Loop is a 6 mile moderately popular intermediate route located near Northampton Massachusetts. This mountain bike primary route. This route includes 7 trails. This route climbs 787 ft with a max elevation of 612 ft then descends -782 ft.
Trail Issues on Route
- Minor Issue / Yellow: 2 trails (newest: Oct 15, 2025)
Local Trail Association
Please consider joining or donating to the local riding association to support trail development & maintenance.
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Stats
-
Distance6 miles
-
Avg time59 min 42 sec
-
Altitude change3 ft
-
Altitude min249 ft
-
Altitude start249 ft
-
Altitude end253 ft
-
Climb787 ft
-
Descent-782 ft
-
Grade max-26.7%
-
Grade min19.9%
-
Distance climb3 miles
-
Distance down3 miles
-
Distance flat3,783 ft
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Trails in Route
| 3,599 ft | |||||
| 1,591 ft | |||||
| 4,469 ft | |||||
| 1 mile | |||||
| 561 ft | |||||
| 784 ft |
Details
-
Riding area
-
Primary ActivityMountain Bike
-
Other Activities
- Hike
- Trail Running
- Snowshoe
- Nordic Ski
-
Difficulty ratingBlue
-
eBike Allowed
-
Activity Logs
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3D
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)
Trailforks scans users activity logs 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 users are riding a trail in its intended direction.
The colour categories are based on what percentage of users are riding a trail in its intended direction.
- > 96%
- > 90%
- > 80%
- > 70%
- > 50%
- < 50%
- bi-directional trail
- no data
Trail Last Used
Trailforks scans activity logs 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.
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Trail Popularity ?
Trailforks scans activity logs 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 activities = more kinetic energy = warmer colors.
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- popular
- less popular
- not popular
ATV/ORV/OHV Filter
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Radar Time
Activity Recordings
Trailforks uses anonymized public activity data.
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Activity Recordings
Trailforks uses anonymized public activity data.
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Winter Trails
Warning
A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
Missing Trails
Most Popular
Least Popular
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 users jump on trails. Zoom in to see individual jumps, click circles to view jump details.
BC Backroad Status
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Service Road Atlas is a free to use, community-driven service for viewing and creating reports on the numerous back-country service roads around B.C. and Alberta.
Slope Aspect
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Photos
Videos
mtb
Saw Mill Hills
trail: Flat Rock
0:07 | | comments: 0 | favs:
Feb 19, 2024
A short glimpse of a Saw Mill Hills hike with dogs, Willy & Beau (they loved it!). Beautiful Winter day, apprx 32°.
mtb
Sawmills Mountain Biking, Northampton Ma
trail: Flat Rock
28:22 | 689 | comments: 0 | favs:
Jun 12, 2023
Recent Trail Reports Along Route
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& contributors - #37422 - 812 views
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