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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
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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
Jump Magnitude Heatmap
Heatmap of where riders jump on trails. Zoom in to see individual jumps, click circles to view jump details.
Trails Deemphasized
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      Region Details
      • 110
      • 42
      • 76
      • 68
      • 64
      • 11

      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      585
      Trails Mountain Bike
      372
      Trails E-Bike
      121
      Trails Hike
      572
      Trails Trail Running
      571
      Trails Horse
      174
      Trails Dirtbike/Moto
      36
      Trails Observed Trials
      7
      Trails ATV/ORV/OHV
      37
      Trails Snowmobile
      5
      Trails Snowshoe
      28
      Trails Backcountry Ski
      18
      Trails Nordic Ski
      27
      Total Distance
      769 miles
      Total Descent
      125,958 ft
      Total Vertical
      8,487 ft
      Highest Trailhead
      13,460 ft
      Reports
      9,073
      Photos
      887
      Ridden Counter
      81,740

      Popular Boulder County Mountain Biking Trails

      statustitledifficultyrating
      Upper Bitterbrush
      Hall Ranch
      Nelson Loop
      Hall Ranch
      Lower Bitterbrush
      Hall Ranch
      Antelope
      Hall Ranch
      Loop Link
      Betasso Preserve
      Benjamin Loop
      Betasso Preserve
      Springbrook North
      Marshall Mesa/Doudy Draw/Flatirons Vista
      Picture Rock
      Heil Valley Ranch
      Springbrook Connector
      Marshall Mesa/Doudy Draw/Flatirons Vista
      Springbrook South
      Marshall Mesa/Doudy Draw/Flatirons Vista
      Canyon Loop
      Betasso Preserve
      Coal Seam
      Marshall Mesa/Doudy Draw/Flatirons Vista
      Community Ditch - West
      Marshall Mesa/Doudy Draw/Flatirons Vista
      Mayhoffer Singletree (City)
      Marshall Mesa/Doudy Draw/Flatirons Vista
      Dual Slalom
      Valmont Bike Park

      Boulder County Mountain Bike Routes

      titleratingdistance
      Hall Ranch Technical Side
      Hall Ranch
      10 miles
      Buchanan Waterfall out-and-back
      Brainard Lake and Peaceful Valley
      7 miles
      Coney Buchanan Loop
      Brainard Lake and Peaceful Valley
      11 miles
      Betasso Loops
      Betasso Preserve
      7 miles
      Waldrop/Snowshoe Loop
      Brainard Lake and Peaceful Valley
      5 miles
      Hall Ranch: Intermediate Fun
      Hall Ranch
      7 miles
      Walker Out-and-Back to Stairs
      Walker Ranch
      11 miles
      Marshall Mesa Doudy Draw Loop
      Marshall Mesa/Doudy Draw/Flatirons Vista
      12 miles
      Hall Ranch Technical Descent
      Hall Ranch
      12 miles
      West Magnolia Tour
      Magnolia
      8 miles

      Recent Ride Log Activity in Region

      Today
      • 0 rides
      Yesterday
      • 94 rides
      Past Week
      • 603 rides

      Photos of Boulder County Mountain Bike

      trail: Fireman Hill
      254 |
      Apr 17, 2020 @ 7:39am
      Apr 17, 2020
      | 2 comments
      55 |
      Mar 9, 2019 @ 7:53am
      Mar 9, 2019
      217 |
      Mar 9, 2019 @ 7:47am
      Mar 9, 2019
      481 |
      Mar 9, 2019 @ 7:37am
      Mar 9, 2019
      trail: Davidson Mesa
      80 |
      Mar 9, 2019 @ 5:50am
      Mar 9, 2019
      trail: Canyon Loop
      431 |
      Apr 13, 2018 @ 7:40am
      Apr 13, 2018
      trail: Fourmile Link
      270 |
      Apr 13, 2018 @ 7:40am
      Apr 13, 2018
      380 |
      Jun 6, 2017 @ 1:31pm
      Jun 6, 2017

      Videos of Boulder County Mountain Bike

      Moon Booter
      | Mar 28, 2022
      Western
      28 | Dec 10, 2020
      Fall Flow
      0:48 | 92 | Sep 27, 2020
      Hot-Lap
      trail: Hot Lap
      4:02 | 179 | Jun 3, 2020
      Faceplanting a tree
      trail: Dog
      0:20 | 131 | May 18, 2020
      Friday Fail May 2020
      0:17 | 471 | May 8, 2020
      Friday Fail May 2020
      | May 8, 2020
      Friday Fails Submission
      0:06 | 933 | Mar 16, 2020

      Current Trail Warnings

      statustraildateconditionuserinfo
      Moffat Road
      Nederland
      Jun 18, 2022 @ 1:54pm
      Jun 18, 2022
      VariableBarryhickoryE-Bike Clear from 40 to base of trestle bridge....
      Rollinsville Road Connector
      Magnolia
      Jun 4, 2022 @ 3:22pm
      Jun 4, 2022
      VariableJarko1Lots of downed trees on southern half

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #944666noahyunkerwishlistregionValmont Bike Park
      Jul 2, 2022 @ 11:04pm
      2 hours
      user #522762dthomp325riddentrailEast Boulder (Middle)
      Jul 2, 2022 @ 8:46pm
      4 hours
      user #2121241gmartinez146addreportPicture Rock
      Jul 2, 2022 @ 3:06pm
      10 hours
      user #2827429dariuszlwishlistrouteWest Mag Backcounty Route
      Jul 2, 2022 @ 2:53pm
      10 hours
      user #1493826WendyBMAaddreportWest Shore Access
      Jul 2, 2022 @ 2:37pm
      10 hours

      Recent Comments

      usernametypetitlecommentdate
      user #2612124PusspussonafullsusstrailODBDo not ride up this trail like a Jerry..all...
      Jun 19, 2022 @ 11:40am
      Jun 19, 2022
      user #2127842rcjohntrailSpringbrook SouthGreat area, but mtb folks need to slow down. ...
      May 25, 2022 @ 9:30am
      May 25, 2022
      user #2612124PusspussonafullsusstrailSchoolbusHa definitely not a black and maybe a blue in...
      May 25, 2022 @ 9:14am
      May 25, 2022
      user #1094914Harley77trailSourdough (North)Big snow drifts… needs a bit of melting...
      May 11, 2022 @ 8:08pm
      May 11, 2022
      user #2984221JrhockneytrailBon ScottThis is arguably a double black diamond trail...
      Apr 24, 2022 @ 6:47pm
      Apr 24, 2022

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike372502 miles62,493 ft216 miles6,709 ft
      7518,9356799,726
      E-Bike121221 miles16,631 ft89 miles6,693 ft
      5,6121,499
      Hike572760 miles125,358 ft335 miles8,488 ft
      1458,677686,057
      Trail Running571754 miles124,639 ft333 miles8,488 ft
      8,676675,377
      Horse174227 miles40,240 ft108 miles7,503 ft
      2,558443
      Dirtbike/Moto3690 miles8,878 ft39 miles4,386 ft
      2,168111
      Observed Trials715 miles1,427 ft7 miles1,788 ft
      2146
      ATV/ORV/OHV3793 miles8,983 ft40 miles4,386 ft
      2,16811
      Snowmobile511 miles801 ft3 miles1,148 ft
      1311
      Snowshoe2853 miles6,696 ft20 miles6,309 ft
      20843110
      Backcountry Ski1832 miles1,893 ft8 miles3,504 ft
      186868
      Nordic Ski2755 miles6,949 ft22 miles3,504 ft
      20810513
      • By roaming50 & contributors
      • Admins: jpmcghee, msmcfate, cmcquade, BMA, darmabum, getvert, jgebben, mpopetz, Pumpntrail, Iowegian
      • #15769 - 11,831 views
      • boulder county activity log | embed map of Boulder County mountain bike trails | boulder county mountain biking points of interest

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