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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)
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.
- 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
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
![map legend]()
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
Direction the slope faces
Trails Deemphasized
Trails are shown in grey.
Only show trails with no bike usage.
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.
SaveGrinnell trails and routes are listed on Trailforks with interactive trail maps, difficulty ratings, photos, and user-reported trail conditions. Supported activity types include Mountain Biking, E-Biking, Hiking, Trail Running and Gravel Biking. Popular destinations include Arbour Lake Trails.
This is an auto-generated description of Grinnell.
Login or register to submit a custom description.
Trail info last updated
Activities Click to view
- Mountain Bike
5 trails
- E-Bike
5 trails
- Gravel Bike
1 trails
- Winter Fat Bike
0 trails
- Hike
5 trails
- Trail Running
5 trails
Region Details
- 4
- 1
Region Status
Open as of May 9, 2026
Stats
- Avg Trail Rating
- Trails (view details)
- 5
- Trails Mountain Bike
- 5
- Trails E-Bike
- 5
- Trails Gravel Bike
- 1
- Trails Hike
- 5
- Trails Trail Running
- 5
- Total Distance
- 11 miles
- Total Descent Distance
- 5 miles
- Total Descent
- 415 ft
- Total Vertical
- 124 ft
- Highest Trailhead
- 1,030 ft
- Reports
- 48
- Photos
- 37
- Completed Counter
- 4
Sub Regions
-
Arbour Lake Trails
- 1
Popular Grinnell Mountain Biking Trails
• 5 ★ 0.0 • 2 miles • 120 ft •
Wonderful trail inside city limits that winds amongst the trees and along a small stream. Great for birdwatching. This is a multi-use trail that is family and dog friendly. Be on the watch for mountain bikers
Grinnell Mountain Bike Routes
Photos of Grinnell Mountain Bike
Recent Trail Reports
| status | trail | date | condition | info | user |
|---|---|---|---|---|---|
| Arbor Lake Soft Trail | May 9, 2026 @ 6:39am (America/Chicago) May 9, 2026 | Variable | peteb33 IG TT |
Activity Feed
| username | action | type | title | date |
|---|---|---|---|---|
| peteb33 | add | report | activity #94325953 | May 9, 2026 @ 4:39am May 9, 2026 |
| peteb33 | add | photo | activity #94325801 | May 9, 2026 @ 4:37am May 9, 2026 |
| peteb33 | add | photo | activity #94208414 and 18 more | May 7, 2026 @ 4:29am May 7, 2026 |
| peteb33 | add | report | activity #94208362 and 3 more | May 7, 2026 @ 4:28am May 7, 2026 |
| msmcfate | add | route | activity #94015694 and 6 more | May 4, 2026 @ 4:21am May 4, 2026 |
Recent Comments
| username | type | title | comment | date |
|---|---|---|---|---|
| report | clean up. | May 3, 2026 @ 12:23pm May 3, 2026 |
Activity Type Stats
| activitytype | trails | distance | descent | descent distance | total vertical | rating | global rank | state rank | photos | reports | routes | activity logs |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mountain Bike | 5 | 11 miles | 417 ft | 5 miles | 125 ft | #10,020 | #3,126 | 2 | 48 | 7 | 538 | |
| E-Bike | 5 | 11 miles | 417 ft | 5 miles | 125 ft | #8,451 | #2,546 | 34 | 7 | 4 | ||
| Gravel Bike | 1 | 2 miles | 121 ft | 2,782 ft | 62 ft | #1,717 | #465 | 11 | 13 | 8 | 32 | |
| Hike | 5 | 11 miles | 417 ft | 5 miles | 125 ft | #5,044 | #1,761 | 24 | 42 | 17 | ||
| Trail Running | 5 | 11 miles | 417 ft | 5 miles | 125 ft | #12,165 | #4,217 | 42 | 2 |
- By WillieJacobsz
Trailforks SBP SWW & contributors - Admins: IG TT, andel20
- #59181 - 743 views
- grinnell activity log | embed map of Grinnell mountain bike trails | grinnell mountain biking points of interest
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