more stats
2,090 ft
Distance
27 ft
Climb
-27 ft
Descent
00:02:34
Avg time
0 ft
Altitude change
166 ft
Altitude min
196 ft
Altitude max
167 ft
Altitude start
167 ft
Altitude end
-10.7%
Grade max
4.7%
Grade min
1,089 ft
Distance climb
607 ft
Distance down
331 ft
Distance flat
00:02:34
Avg time

Garrison Loop Details

  • Activities
    • Mountain Bike
    • Hike
    • Trail Running
  • Riding Area
    Great Brook Farm State Park
    Carlisle, Massachusetts
  • Difficulty Rating
    Green Rate
  • Local Popularity
    80 in Mountain Biking [+]
    • 40 in Trail Running
    • 60 in Hiking
  • Global Ranking
    #93905 in Mountain Biking [+]
    • #139486 in Trail Running
    • #144081 in Hiking
  • State Ranking
    #1,634 in Mountain Biking · Massachusetts [+]
    • #4,892 in Trail Running
    • #6,111 in Hiking
  • Trail Type
    Singletrack
  • Bike Type
    XC, Fat
  • Direction
    Both Directions
  • Climb Difficulty
    Green
  • Physical Rating
    Easy
  • Season
    April - November
  • Dogs Allowed
    Yes
  • eBike Allowed
    No

Multi-use trail, but it is fun for biking.

Access Info

Start and end on the Woodchuck trail, or use it to get to/from Deer Run

Tags

Local Trail Association

Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 1 rides
  • 10 miles average
6 Months
  • 43 rides
  • 14 miles avg distance
All
  • 301 rides
  • Last: Oct 27, 2026
update trails status or condition

Garrison Loop Trail Reports

statusdatedescription
Mar 30, 2019 @ 3:10pm
Mar 30, 2019
 reporter Running great. Isolated normal wet spots
Jul 15, 2017 @ 10:23am
Jul 15, 2017
more »
Status:
on Mar 30, 2019
Dry
Avg: 3.74 (2 votes)
Your vote: 0

view (900)
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      Directions to garrison-loop trailhead (42.557740, -71.336800)
      View on Discover Map

      Photos

      1 more »
      mtb
      43 |
      May 3, 2026 @ 1:20pm
      May 3, 2026
      Trail Sign 1

      Videos

      no videos have been added for Garrison Loop yet, add a video.

      Routes with this trail

      13
      PK: Great Brook Farm Intermediate Route 2025 Featured
      ★ 3.3 • 11 miles • 579 ft • 17 • Out & Back •
      This is an intermediate 12 mile route which leaves from the Ski parking area. The route starts out on the...
      82
      2024 Great Brook Advanced Trifecta Route - PK Memorial
      ★ 2.5 • 30 miles • 1,840 ft • 57 • Loop •
      2024 NEMBA PK Memorial Advanced ride route. The route outside of Great Brook will not be marked....
      80
      PK: Great Brook Farm Advanced Route 2025 Featured
      30 miles • 1,752 ft • 59 • Loop •

      Links

      3.0 ★★★★★
      2 Ratings
      5 ★ 50%
      4 ★
      3 ★
      2 ★
      1 ★ 50%

      Reviews / Comments

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      Nearby Trails

      Great Brook Farm State Park

      • By menbatthews & contributors
      • #68958 - 1,132 views

      Frequently Asked Questions

      ▼ Where is Garrison Loop located?
      Garrison Loop is located in Great Brook Farm State Park, Carlisle, Massachusetts, United States. It is part of the Great Brook Farm State Park trail network. The trailhead is located at coordinates 42.55774, -71.3368.
      ▼ How hard is Garrison Loop?
      Garrison Loop is rated as Green difficulty. The physical rating is Easy. The climb difficulty is rated Green.
      ▼ What is the elevation gain for Garrison Loop?
      Garrison Loop has 27 ft of elevation gain. The trail has 27 ft of elevation descent. The elevation ranges from 166 ft to 196 ft.
      ▼ Is Garrison Loop a point to point trail?
      Garrison Loop is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
      ▼ How long is Garrison Loop?
      Garrison Loop is 2,090 ft long. The trail type is singletrack.
      ▼ Are dogs allowed on Garrison Loop?
      Yes, dogs are allowed on Garrison Loop. Please keep dogs on a leash where required and clean up after them.
      ▼ When is the best time of year to ride Garrison Loop?
      Garrison Loop is best visited during: April - November.
      ▼ How do I access Garrison Loop? Where is the closest parking trailhead?
      The closest parking and trailhead locations to Garrison Loop are: View all parking locations in the area.
      ▼ How long does it take to ride Garrison Loop?
      Based on recorded activities, it takes an average of 3 minutes to ride Garrison Loop. The trail is 2,090 ft long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
      ▼ How busy is Garrison Loop?
      Garrison Loop is a very popular trail. There have been 861 recorded activities on this trail. The trail has received 900 check-ins. View recent activity on this trail.

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