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171 ft
Distance
-19 ft
Descent
00:00:44
Avg time
-19 ft
Altitude change
223 ft
Altitude min
242 ft
Altitude max
242 ft
Altitude start
223 ft
Altitude end
-10.9%
Grade
-29.4%
Grade max
112 ft
Distance down
59 ft
Distance flat
00:00:44
Avg time
Unknown Cut Off Details
-
Activities
- Mountain Bike
- Hike
- Trail Running
-
Riding AreaRockville Hills Regional Park
Fairfield, California -
Difficulty Rating
-
Local Popularity15 in Mountain Biking [+]
- 5 in Trail Running
- 40 in Hiking
-
Trail TypeSingletrack
-
DirectionBoth DirectionsPopular In Reverse
-
Dogs AllowedYes
No community description for Unknown Cut Off trail has been added yet!
AI Generated Description
Unknown Cut Off is a 171 ft less popular black diamond difficulty connector singletrack trail located near Fairfield California. This mountain bike primary trail can be used both directions. On average it takes minutes to complete this trail.
Traditionally Indigenous Territory
Recent Activity on Trail
Past Week
- 0 rides
6 Months
- 0 rides
All
- 17 rides
- Last: Oct 11, 2026
Unknown Cut Off Trail Reports
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Trail reports are used to indicate a trails current condition and inform builders and other users about any issues on a trail.
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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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ATV/ORV/OHV Filter
Max Vehicle Width
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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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Trails are colored based on popularity. The more popular a trail is, the more red. Less popular trails trend towards green.
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BC Backroad Status
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Slope Aspect
Direction the slope faces
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Directions to unknown-cut-off trailhead
(38.250250, -122.144800)
Photos
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Videos
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Routes with this trail
6 miles • 1,015 ft • 10 •
Hit up Lower Tilly counter clockwise, make your way around the lake and up the fire road to the Tower,...
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Nearby Trails
- Outside Loop 938 ft
- Heartwood 1,280 ft
- Alt Line 1,280 ft
- Tim's Cutoff 1,306 ft
- Sunset Cave Trail 1,345 ft
Rockville Hills Regional Park
- By bkxc
Everstoke & contributors - #403496 - 150 views
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