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751 ft
Distance
13 ft
Climb
-21 ft
Descent
00:01:53
Avg time
-8 ft
Altitude change
1,185 ft
Altitude min
1,208 ft
Altitude max
1,208 ft
Altitude start
1,201 ft
Altitude end
-1.1%
Grade
-22.3%
Grade max
15.9%
Grade min
135 ft
Distance climb
256 ft
Distance down
354 ft
Distance flat
00:01:53
Avg time
Stables Shoulder Details
-
Activities
- Mountain Bike
- E-Bike
- Hike
- Trail Running
-
Riding AreaFrank G. Bonelli Park
San Dimas, California -
Difficulty Rating
-
Local Popularity
-
Trail TypeSingletrack
-
Bike TypeXC
-
DirectionBoth Directions
-
Climb DifficultyGreen
-
Physical RatingEasy
-
Trail VisibilityAlways easy to follow
-
Dogs AllowedYes
-
eBike Allowed
Narrow alternative dirt single track trail
Local Trail Association
-
-
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trail development & maintenance.
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 5 rides
- 12 miles avg distance
All
- 40 rides
- Last: Sep 12, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Stables Shoulder 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
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.
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- popular
- less popular
- not popular
ATV/ORV/OHV Filter
Max Vehicle Width
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US Cell Coverage
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Radar Time
Activity Recordings
Trailforks uses anonymized public activity data.
?
Activity Recordings
Trailforks uses anonymized public activity data.
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Winter Trails
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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 stables-shoulder trailhead
(34.082510, -117.787230)
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Nearby Trails
- Stables Connector 23 ft
- Bonelli Golf Tour 171 ft
- Corkscrew 253 ft
- Rocky Trail 256 ft
- Zurkon Single Track 364 ft
Frank G. Bonelli Park
- By rowdyphil & contributors
- #404099 - 236 views
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