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794 ft
Distance
-150 ft
Descent
00:00:32
Avg time
-150 ft
Altitude change
806 ft
Altitude min
956 ft
Altitude max
956 ft
Altitude start
807 ft
Altitude end
-18.9%
Grade
-50.8%
Grade max
-7%
Grade min
794 ft
Distance down
00:00:32
Avg time
Fear Boner Details
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Activities
- Mountain Bike
- E-Bike
-
Riding AreaDel Valle Regional Park
Livermore, California -
Difficulty Rating
-
Local Popularity
-
Global Ranking
-
State Ranking
-
Trail ExposureNormal
-
Trail TypeSingletrack
-
DirectionDownhill Only[+]Popular Direction Shown
- Downhill Only for E-Biking
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Dogs AllowedYes
-
eBike AllowedYes up to Class 1
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TTFs on TrailBerm, Jump
No community description for Fear Boner trail has been added yet!
AI Generated Description
Fear Boner is a 794 ft popular blue difficulty singletrack trail located near Livermore California. This mountain bike primary trail can be used downhill only. It features berm and jump. Exposure: Normal Injury Risk. On average it takes minutes to complete this trail.
This trail is unsanctioned.
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 9 rides
- 22 miles avg distance
All
- 71 rides
- Last: Nov 14, 2026
| c1 | c2 | c3 | c4 |
|---|---|---|---|
January | February | March | April |
May | June | July | August |
September | October | November | December |
Fear Boner 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)
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
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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
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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
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Only show trails with no bike usage.
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Directions to fear-boner trailhead
(37.597490, -121.710390)
Photos
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Videos
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