1,156 ft
3 ft
-194 ft
Avg time


  • Riding area
    Rockville Hills Regional Park
    Fairfield, California
  • Difficulty rating
    Double Black Diamond
  • Trail type
  • Bike type
    DH, AM
  • Trail Usage
    Biking Primary
  • Direction
    Downhill Primary
    Popular direction shown
  • Physical rating
  • TTFs on trail
    Rock Face, Rock Garden
  • Global Ranking

Technical Downhill. Nasty. You can fly down this thing but you better bring your A-Game.A few switch-backs on the way down. Set your suspension wide open. When you see your line, stick it. Too steep to change your mind mid-ride.

Access Info

Access this trail via halfway through Upper Tilley. Assuming that you are going counter-clockwise, after the downhill section, instead of a left to complete Upper Tilley Loop, turn right. There are signs located at the turns.


Never listed/discription added

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More Stats for Upper to Lower Tilley Technical Downhill mountain bike trail
  • Altitude change
    -191 ft
  • Altitude min
    218 ft
  • Altitude max
    409 ft
  • Altitude start
    409 ft
  • Altitude end
    218 ft
  • Grade
  • Grade max
  • Grade min
  • Distance climb
    20 ft
  • Distance down
    1,034 ft
  • Distance flat
    103 ft
  • Avg time
  • view trail stats
on Jan 13, 2018
Avg: 4.5 (2 votes)

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Layers winter
Trail Style
  • ?
Directions to upper-to-lower-tilley-technical-downhill trailhead (38.239880, -122.131590)
update trails status or condition

Upper to Lower... Trail Reports

Jan 13, 2018 @ 9:39am
Jan 13, 2018
Nov 5, 2017 @ 2:20pm
Nov 5, 2017
Really technical, if first time be safe and find a good line
view all reports »


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