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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Inadequate
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
Trail Flow (Ridden Direction)
Trailforks scans users ridelogs 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 riders are riding a trail in its intended direction.
  • > 96%
  • > 90%
  • > 80%
  • > 70%
  • > 50%
  • < 50%
  • bi-directional trail
  • no data
Trail Last Ridden
Trailforks scans ridelogs 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 ridelogs 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 rides = more kinetic energy = warmer colors.
  • most popular
  • popular
  • less popular
  • not popular
ATV/ORV/OHV Filter
Max Vehicle Width
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Radar Time
x Activity Recordings
Trailforks users anonymized public ridelogs from the past 6 months.
  • mountain biking recent
  • mountain biking (>6 month)
  • hiking (1 year)
  • moto (1 year)
Activity Recordings
Trailforks users anonymized public skilogs from the past 12 months.
  • Downhill Ski
  • Backcountry Ski
  • Nordic Ski
  • Snowmobile
Winter Trails
Warning A routing network for winter maps does not exist. Selecting trails using the winter trails layer has been disabled.
x 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 riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
Trails Deemphasized
Trails are shown in grey.
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Only show trails with NO bikes.
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      No description for Orinda has been added yet! Login or register to submit one.
      Activities Click to view
      Region Details
      • 2
      • 5
      • 2
      • 3

      Region Status
      Open as of Jul 31, 2023

      Stats

      Avg Trail Rating
      Global Ranking
      #4,882
      State Ranking
      #1,715
      Trails (view details)
      13
      Trails Mountain Bike
      16
      Trails Horse
      5
      Trails Hike
      16
      Trails Trail Running
      16
      Total Distance
      3 miles
      Total Descent Distance
      2,457 ft
      Total Descent
      133 ft
      Total Vertical
      597 ft
      Highest Trailhead
      1,593 ft
      Reports
      5
      Ridden Counter
      586
      Sub Regions

      Popular Orinda Mountain Biking Trails

      statustitledifficultyrating
      Quarry Road
      Volcanic Trail
      Quarry Trail
      TNTwo
      Wilder Access Road
      Old San Pablo Trail
      Bear Creek Trail
      Bear Creek Trail

      Orinda Mountain Bike Routes

      titleratingdistance
      Briones Park Loop
      		27 miles

      Recent Ride Log Activity in Region

      Today
      • 0 rides
      Yesterday
      • 2 rides
      Past Week
      • 10 rides

      Recent Trail Reports

      statustraildateconditioninfouser
      Quarry Road
      Oct 13, 2022 @ 2:18pm
      Oct 13, 2022
      		 Idealcoachbobo
      Volcanic Trail
      May 31, 2021 @ 10:54am
      May 31, 2021
      		 DryPlinyTheShooter

      Activity Feed

      usernameactiontypetitledate
      cynicalchriswishlisttrailTNTwo
      Sep 18, 2023 @ 9:50pm
      3 days
      cynicalchriswishlisttrailTNT and 1 more
      Sep 18, 2023 @ 9:49pm
      3 days
      vacuumnwishlisttrailTNT
      Sep 17, 2023 @ 10:07am
      Sep 17, 2023
      DsLFd6riddentrailTNTwo
      Aug 21, 2023 @ 4:12am
      Aug 21, 2023
      DarnielwishlistrouteBriones Park Loop
      Aug 19, 2023 @ 11:50am
      Aug 19, 2023

      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike162 miles10 ft561 ft509 ft
      		#4,882#1,715511,981
      Horse5
      Hike163 miles131 ft2,457 ft597 ft
      		5365
      Trail Running163 miles131 ft2,457 ft597 ft
      		563
      • By Ralameda & contributors
      • Admins: spokesmanmtb, BTCEB, bkxc
      • #39171 - 801 views

      Downloading of trail gps tracks in kml & gpx formats is enabled for Orinda.
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