more stats
1,434 ft
Distance
15 ft
Climb
-27 ft
Descent
00:04:05
Avg time
-12 ft
Altitude change
409 ft
Altitude min
436 ft
Altitude max
432 ft
Altitude start
420 ft
Altitude end
-0.9%
Grade
-8.5%
Grade max
5.3%
Grade min
456 ft
Distance climb
627 ft
Distance down
308 ft
Distance flat
00:04:05
Avg time

Gryffindor Details

  • Activities
    • Mountain Bike
    • Horse
    • Hike
    • Trail Running
  • Riding Area
    Potter Hill Trails
    Grafton, Massachusetts
  • Difficulty Rating
  • Local Popularity
    100 in Mountain Biking [+]
    • 5 in Trail Running
    • 100 in Hiking
    • 5 in Horseback
  • Global Ranking
    #16224 in Mountain Biking [+]
    • #18557 in Hiking
  • Hiking SAC Scale
    T1 Hiking
  • Trail Type
    Singletrack
  • Bike Type
    XC
  • Direction
    Both Directions
  • Climb Difficulty
    Blue
  • Physical Rating
    Moderate
  • Trail Visibility
    Always easy to follow
  • Dogs Allowed
    Yes
  • Land Owner

Gryffindor is a fun, modestly technical singletrack trail flowing through the forest down to the Martha Deering Access Road. The trail surface is generally firm with seasonal leaf cover.

Traditionally Indigenous Territory

Recent Activity on Trail

Past Week
  • 0 rides
  •  
6 Months
  • 35 rides
  • 12 miles avg distance
All
  • 200 rides
  • Last: Aug 13, 2026
update trails status or condition

Gryffindor Trail Reports

statusdatedescription
Apr 21, 2026 @ 9:52am (America/New_York)
Apr 21, 2026
Nov 17, 2025 @ 9:18am (America/New_York)
Nov 17, 2025
Trail rides fine now, but is going to need some trimming come the springtime.
Jun 21, 2022 @ 1:42pm
Jun 21, 2022
Starting to be overgrown
Aug 11, 2019 @ 5:02am
Aug 11, 2019
reporter Gryffindor is in great shape except for one fairly large tree down about half way down. Too big to hop but easy to climb over. In places the...
more »
Status:
on Apr 21, 2026
Ideal
Avg: 4.32 (3 votes)
Your vote: 0

view (541)
close
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.
  • > 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.
  • Description
  • Photos
  • Description & Photos
  • Videos
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.
  • most popular
  • popular
  • less popular
  • not popular
ATV/ORV/OHV Filter
Max Vehicle Width
inches
US Cell Coverage
Legend
cell carrier legend

Radar Time
Activity Recordings
Trailforks uses anonymized public activity data. ?
Activity Recordings
Trailforks uses anonymized public activity data. ?
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

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.

map legend
Slope Aspect
Direction the slope faces
Flat N NE E SE S SW W NW
Trails Deemphasized
Trails are shown in grey.
disable
Only show trails with no bike usage.
Enable
Suggested Layers
Based on selected activity type

    Save the current map location and zoom level as your default home location whenever this page is loaded.

    Save
        Directions to gryffindor trailhead (42.212860, -71.728260)

        Photos

        No photos have been added for Gryffindor yet, add a photo.

        Videos

        no videos have been added for Gryffindor yet, add a video.
        5.0
        3 Ratings
        5 100%
        4
        3
        2
        1

        1 Review & Comments


        We hope you've been enjoying Trailforks!

        Create a FREE account to view trail comments and much more.

        Frequently Asked Questions About Gryffindor

        Where is Gryffindor located?
        Gryffindor is located in Potter Hill Trails, Grafton, Massachusetts, United States. It is part of the Potter Hill Trails trail network. The trailhead is located at coordinates 42.21286, -71.72826.
        How hard is Gryffindor?
        Gryffindor is rated as Blue difficulty. The physical rating is Moderate. The average grade is 0.9%. The climb difficulty is rated Blue.
        What is the elevation gain for Gryffindor?
        Gryffindor has 15 ft of elevation gain. The trail has 27 ft of elevation descent. The elevation ranges from 409 ft to 436 ft.
        Is Gryffindor a point to point trail?
        Gryffindor is not a point to point trail. The direction is Both Directions. The trail type is singletrack.
        How long is Gryffindor?
        Gryffindor is 1,434 ft long. The trail type is singletrack.
        Are dogs allowed on Gryffindor?
        Yes, dogs are allowed on Gryffindor. Please keep dogs on a leash where required and clean up after them.
        How do I access Gryffindor? Where is the closest parking trailhead?
        The closest parking and trailhead locations to Gryffindor are: View all parking locations in the area.
        How long does it take to ride Gryffindor?
        Based on recorded activities, it takes an average of 3 minutes to ride Gryffindor. The trail is 1,434 ft long. Actual times will vary based on fitness level, conditions, and pace. View recent activity logs for more details.
        How busy is Gryffindor?
        Gryffindor is a very popular trail. There have been 502 recorded activities on this trail. The trail has received 541 check-ins. View recent activity on this trail.

        Hit the Trail

        Open in App

        Get this trail on your phone instantly.
        open trail in app

        Download Trail

        Save to wishlist, Garmin & download.
        save the trail

        Find Related Routes

        Find routes and users activities that include this trail.
        find routes for this trail

        You must enter a description before submitting.