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1,917 ft
Distance
4 ft
Climb
-189 ft
Descent
00:01:49
Avg time
-185 ft
Altitude change
997 ft
Altitude min
1,185 ft
Altitude max
1,181 ft
Altitude start
997 ft
Altitude end
-9.628%
Grade
-23.651%
Grade max
2.109%
Grade min
205 ft
Distance climb
1,642 ft
Distance down
00:01:49
Avg time
Corkscrew Details
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Activities
- Mountain Bike
- E-Bike
- Hike
- Trail Running
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Riding AreaFrank G. Bonelli Park
San Dimas, California -
Difficulty Rating
-
Local Popularity
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Global Ranking
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State Ranking#2,719 in Mountain Biking · California [+]
- #997 in E-Biking
- #7,247 in Trail Running
- #14,312 in Hiking
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Trail TypeSingletrack
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DirectionBoth DirectionsPopular Direction Shown
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Climb DifficultyBlack Diamond
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Physical RatingModerate
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Dogs AllowedYes
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eBike Allowed
No community description for Corkscrew trail has been added yet!
AI Generated Description
Corkscrew is a 1,917 ft popular blue difficulty singletrack trail located near San Dimas California. This mountain bike primary trail can be used both directions and has a moderate overall physical rating with a 4 ft black diamond 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.
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 15 rides
- 10 miles avg distance
All
- 187 rides
- Last: Oct 20, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Corkscrew 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
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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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BC Backroad Status
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Slope Aspect
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Directions to corkscrew-108159 trailhead
(34.082790, -117.786470)
Photos
7 more »
Videos
1 more »
mtb
14:59 |
315 |
Nov 21, 2024 , San Dimas
Routes with this trail
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3 Reviews & Comments
jjurado410
Gnarliest rock garden section in the whole park, after that would be a tie between Rocky Trail, and Tree line Trail
Outdoorsd
If you want to put the full suspension to work, this is the trail at Bonelli to ride. Super rocky, loose in sections, and pure fun the whole way.
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Nearby Trails
- Rocky Trail 3 ft
- Bonelli Golf Tour 131 ft
- Stables Shoulder 253 ft
- Stables Connector 272 ft
- Zurkon Single Track 299 ft
Frank G. Bonelli Park
- By todd
Trailforks & contributors - #108159 - 1,755 views
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