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1,483 ft
Distance
10 ft
Climb
-152 ft
Descent
00:02:52
Avg time
-142 ft
Altitude change
956 ft
Altitude min
1,104 ft
Altitude max
1,098 ft
Altitude start
955 ft
Altitude end
-9.6%
Grade
-26%
Grade max
9.8%
Grade min
197 ft
Distance climb
1,033 ft
Distance down
256 ft
Distance flat
00:02:52
Avg time
Tree Coaster Details
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Activities
- Mountain Bike
- E-Bike
- Hike
- Trail Running
-
Riding AreaFrank G. Bonelli Park
San Dimas, California -
Difficulty Rating
-
Local Popularity
-
Hiking SAC ScaleT2 Mountain Hiking
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Trail TypeSingletrack
-
DirectionDownhill Primary
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Climb DifficultyBlue
-
Physical RatingEasy
-
Trail VisibilityAlways easy to follow
-
eBike Allowed
Mostly windy downhill section with a few short pump sections swinging by trees in a roller coaster type narrow single track
Access Info
Enter thru western peak of tree line
Local Trail Association
-
-
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trail development & maintenance.
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 1 rides
- 25 miles avg distance
All
- 11 rides
- Last: Sep 23, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Tree Coaster 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
inches
US Cell Coverage
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Activity Recordings
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?
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 tree-coaster trailhead
(34.078370, -117.805060)
Photos
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Nearby Trails
- Peaknic 213 ft
- Grass Line 371 ft
- Power Lines 466 ft
- Tree Line 584 ft
- Stone Henge Line 909 ft
Frank G. Bonelli Park
- By rowdyphil & contributors
- #423923 - 275 views
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