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1,890 ft
Distance
3 ft
Climb
-7 ft
Descent
00:03:22
Avg time
-2 ft
Altitude change
226 ft
Altitude min
236 ft
Altitude max
233 ft
Altitude start
230 ft
Altitude end
-0.1%
Grade
-2.7%
Grade max
1.8%
Grade min
538 ft
Distance climb
551 ft
Distance down
774 ft
Distance flat
00:03:22
Avg time
Outer Loop 4 (Red) Details
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Activities
- Mountain Bike
- Gravel Bike
- Winter Fat Bike
- Horse
- Hike
- Trail Running
- Snowshoe
- Nordic Ski
-
Riding AreaWenakeening Woods
Holliston, Massachusetts -
Difficulty Rating
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Local Popularity95 in Mountain Biking [+]
- 95 in Trail Running
- 100 in Hiking
- 5 in Horseback
- 5 in Snowshoeing
- 5 in Nordic Skiing
- 5 in Winter Fat Biking
- 80 in Gravel Biking
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Global Ranking#183968 in Mountain Biking [+]
- #93866 in Trail Running
- #86715 in Hiking
- #25045 in Horseback
- #21794 in Snowshoeing
- #28095 in Nordic Skiing
- #34759 in Winter Fat Biking
- #11716 in Gravel Biking
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State Ranking#3,298 in Mountain Biking · Massachusetts [+]
- #2,677 in Trail Running
- #2,607 in Hiking
- #679 in Horseback
- #2,196 in Snowshoeing
- #1,388 in Nordic Skiing
- #1,256 in Winter Fat Biking
- #433 in Gravel Biking
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Trail TypeSingletrack
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Bike TypeXC, Fat, Gravel
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DirectionBoth Directions[+]
- Both Directions for Winter Fat Biking
-
Climb DifficultyGreen
-
Physical RatingEasy
-
Trail VisibilityAlways easy to follow
-
Family FriendlyYes
-
Dogs AllowedYes
-
eBike Allowed
-
Land Owner
No community description for Outer Loop 4 (Red) trail has been added yet!
AI Generated Description
Outer Loop 4 (Red) is a 1,890 ft popular green difficulty family friendly singletrack trail located near Holliston Massachusetts. This multi-use trail can be used both directions and has a easy overall physical rating with a 3 ft green climb. Trail visibility is always easy to follow. On average it takes 3 minutes to complete this trail.
Local Trail Association
-
-
Please consider joining or donating to the local trail association to supportDonate to earn trail karma!
trail development & maintenance.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 4 rides
- 13 miles average
6 Months
- 102 rides
- 10 miles avg distance
All
- 550 rides
- Last: Oct 7, 2026
Outer Loop 4 (Red) Trail Reports
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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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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
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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
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Activity Recordings
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Activity Recordings
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Winter Trails
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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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Slope Aspect
Direction the slope faces
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Directions to outer-loop-4-red trailhead
(42.182380, -71.441900)
Photos
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Videos
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Routes with this trail
★ 5.0 • 25 miles • 1,208 ft • 30 •
This is a draft of a 25 Mile Tour of Holliston
11 miles • 344 ft • 12 •
This loop connects three trails. It starts at Wenankeening Woods trail head in Holliston Rail Trail,...
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Nearby Trails
- Trail 15 0 ft
- Outer Loop 1 (red) 0 ft
- Wenakeening Connector 161 ft
- No Delay 174 ft
- Cedar Rollout 463 ft
- By WillieJacobsz
Trailforks SBP SWW & contributors - #162317 - 799 views
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