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1,509 ft
Distance
-164 ft
Descent
00:01:07
Avg time
-165 ft
Altitude change
7,780 ft
Altitude min
7,945 ft
Altitude max
7,945 ft
Altitude start
7,779 ft
Altitude end
-10.9%
Grade
-20.4%
Grade max
-4.3%
Grade min
1,463 ft
Distance down
23 ft
Distance flat
00:01:07
Avg time
Back Bone Details
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Activities
- Mountain Bike
- E-Bike
- Hike
- Trail Running
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Riding AreaHartman Rocks
Gunnison, Colorado -
Difficulty Rating
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Voted DifficultyBlack Diamond (1 vote)
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Local Popularity75 in Mountain Biking [+]
- 55 in E-Biking
- 80 in Trail Running
- 85 in Hiking
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Global Ranking
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State Ranking#2,205 in Mountain Biking · Colorado [+]
- #1,305 in E-Biking
- #2,918 in Trail Running
- #3,147 in Hiking
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Trail TypeSingletrack
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DirectionBoth DirectionsPopular Direction Shown
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Climb DifficultyBlue
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Physical RatingModerate
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Dogs AllowedYes
-
eBike Allowed
No community description for Back Bone trail has been added yet!
AI Generated Description
Back Bone is a 1,509 ft popular blue difficulty singletrack trail located near Gunnison Colorado. This multi-use trail can be used both directions and has a moderate overall physical rating with a 0 ft blue climb. On average it takes 1 minutes to complete this trail.
Local Trail Association
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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
- 0 rides
6 Months
- 53 rides
- 25 miles avg distance
All
- 123 rides
- Last: Sep 26, 2026
Back Bone 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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Activity Recordings
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Activity Recordings
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BC Backroad Status
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Directions to back-bone trailhead
(38.503070, -106.947000)
Photos
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Videos
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Routes with this trail
★ 4.0 • 32 miles • 4,050 ft • 27 • Race •
The Classic Original Growler route - roughly 32 miles of trail riding at Hartman Rocks.
★ 3.0 • 30 miles • 3,973 ft • 22 • Loop • Race •
20 miles • 2,573 ft • 13 • Race •
The Pup 20 is a shorter version of our Classic Growler course.
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