3,649 ft
20 ft
-272 ft
Avg time

Thorn Alley Details

  • Riding area
    Lime Ridge
    Concord, California
  • Difficulty rating
  • Trail type
  • Trail Usage
  • Direction
    Downhill Primary
    Popular direction shown
  • Climb Difficulty
  • Physical rating
  • eBike Allowed
  • Global Ranking

It's all in the name. Thorn Alley often had a lot of goat heads on it. It is also crowded with hikers so be careful. The Back 9 trail lacks thorns and hikers.

Local Trail Association
  • Please consider joining or donating to the local riding association to support trail development & maintenance.
    donate to earn trail karma!
More Stats for Thorn Alley mountain bike trail
  • Altitude change
    -252 ft
  • Altitude min
    475 ft
  • Altitude max
    743 ft
  • Altitude start
    727 ft
  • Altitude end
    475 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    371 ft
  • Distance down
    3,025 ft
  • Distance flat
    254 ft
  • Avg time
  • view trail stats
no votes yet

view (24)
Layers winter
Trail Style
  • ?
Trail Conditions
  • Unknown
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Dry
  • Very Dry
Directions to thorn-alley trailhead (37.937492, -121.989082)
update trails status or condition

Thorn Alley Trail Reports

no reports have been added for Thorn Alley yet, add a trail report.
Trail reports are used to indicate a trails current condition and inform builders and other riders about any issues on a trail.


no photos have been added for Thorn Alley yet, add a photo.

Reviews / Comments

No reviews yet, be the first to write a review or ask a question.
Use trail reports to comment on trail conditions.

Post a Comment

You must login to Pinkbike.
Don't have an account? Sign up

Join Pinkbike  Login


no videos have been added for Thorn Alley yet, add a video.
  • subscribe
  • flag
  • login to download gpx or kml files.