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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
Trail 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%
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
inches

Radar Time
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
Trails are shown in grey.
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      No description for Boulder has been added yet! Login or register to submit one.
      Activities Click to view
      Region Details
      • 14
      • 3
      • 36
      • 23
      • 14
      • 4

      Region Status
      Open as of 2 days
      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      214
      Trails Mountain Bike
      94
      Trails E-Bike
      8
      Trails Hike
      209
      Trails Trail Running
      209
      Trails Horse
      59
      Trails Dirtbike/Moto
      4
      Trails Observed Trials
      2
      Trails ATV/ORV/OHV
      4
      Total Distance
      205 miles
      Total Descent
      39,320 ft
      Total Vertical
      3,410 ft
      Highest Trailhead
      8,476 ft
      Reports
      4,629
      Photos
      355
      Ridden Counter
      38,690
      Sub Regions

      Photos of Boulder Mountain Bike

      trail: Eagle
      15 |
      Aug 30, 2021 @ 7:55pm
      Aug 30, 2021
      trail: FSR 286H
      6 |
      Aug 28, 2021 @ 8:51am
      Aug 28, 2021
      47 |
      Mar 9, 2019 @ 7:53am
      Mar 9, 2019
      187 |
      Mar 9, 2019 @ 7:47am
      Mar 9, 2019
      372 |
      Mar 9, 2019 @ 7:37am
      Mar 9, 2019
      trail: Canyon Loop
      367 |
      Apr 13, 2018 @ 7:40am
      Apr 13, 2018
      trail: Fourmile Link
      219 |
      Apr 13, 2018 @ 7:40am
      Apr 13, 2018
      324 |
      Jun 6, 2017 @ 1:31pm
      Jun 6, 2017

      Videos of Boulder Mountain Bike

      Hot-Lap
      trail: Hot Lap
      4:02 | 136 | Jun 3, 2020
      Friday Fail May 2020
      0:17 | 387 | May 8, 2020
      Friday Fail May 2020
      | May 8, 2020
      Friday Fails Submission
      0:06 | 741 | Mar 16, 2020
      Dual Slalom on the DJ
      0:41 | 93 | Feb 25, 2020
      Dirt Jumps
      trail: Dirt Jumps
      0:25 | 153 | Aug 7, 2019
      Dirt jumps
      trail: Dirt Jumps
      0:11 | 33 | Jun 2, 2019
      My backyard dirt jumps
      trail: Dirt Jumps
      0:49 | 79 | Apr 18, 2019

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #2489937dvt1addreportLefthand Main and 7 more
      Sep 20, 2021 @ 6:29am
      18 hours
      user #2848347jacobdkoaddreportBaseline Trail and 3 more
      Sep 19, 2021 @ 7:23pm
      1 day
      user #1120858richeyrichwishlisttrailWalker Ranch Loop
      Sep 19, 2021 @ 12:47pm
      1 day
      user #2848347jacobdkoaddreportMarshall Valley and 10 more
      Sep 19, 2021 @ 6:25am
      2 days
      user #1493826WendyBMAaddreportLoop Link and 2 more
      Sep 17, 2021 @ 6:10pm
      Sep 17, 2021

      Recent Comments

      usernametypetitlecommentdate
      user #2392841Kdub91712trailEagleSaw two rattlesnakes about a minute apart near...
      Aug 30, 2021 @ 7:54pm
      Aug 30, 2021
      user #2120030sfgeraldtrailWalker Ranch LoopI took a left at the start, meaning I climbed...
      Aug 26, 2021 @ 8:01am
      Aug 26, 2021
      user #1793074WillMatttrailAccess RoadHey, thanks! Chunky singletrack-ish wash that...
      Aug 17, 2021 @ 12:34pm
      Aug 17, 2021
      user #1493826WendyBMAtrailAccess RoadI changed direction to start at top and run...
      Aug 17, 2021 @ 12:06pm
      Aug 17, 2021
      user #627246chuktAtrailAccess RoadTrailforks is crowdsource, please submit an...
      Aug 17, 2021 @ 11:50am
      Aug 17, 2021

      Local Badges

      Bike & Skill Parks

      nametypecityrating
      Valmont Bike Parkskill parkBoulder

      Pinkbike Articles

      Jul 31, 2019
      Industry Veteran Andrew Bernstein Critically Injured in Boulder Hit and Run - Updated 7/31 Industry Veteran Andrew Bernstein Critically Injured in Boulder Hit and Run - Updated 7/31
      There's a search underway for the vehicle that hit him and authorities now have photos of the van they believe was involved.
      Feb 5, 2019
      Niner Announces All-New RIP 9 RDO Niner Announces All-New RIP 9 RDO
      Niner has a new RIP 9 RDO... and it's available with 27.5" wheels. Go figure.
      Feb 10, 2014
      Dartmoor Returns to North America Dartmoor Returns to North America
      Polish brand Dartmoor will now be available through Hooray Bikes in North America.

      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike94116 miles15,377 ft46 miles2,953 ft
      #107#452994,5601641,683
      E-Bike815 miles801 ft5 miles1,627 ft
      #1,736#3162,744537
      Hike209204 miles39,245 ft87 miles3,409 ft
      #87#43564,48982,719
      Trail Running209204 miles39,245 ft87 miles3,409 ft
      #89#434,48962,196
      Horse5953 miles12,080 ft26 miles2,920 ft
      #195#1251,27581
      Dirtbike/Moto4
      1,238
      Observed Trials2
      82
      ATV/ORV/OHV4
      1,238
      • By canadaka Trailforks & contributors
      • Admins: BMA, darmabum, getvert, mpopetz, Pumpntrail, Iowegian
      • #4922 - 14,267 views

      Downloading of trail gps tracks in kml & gpx formats is enabled for Boulder.
      You must login to download files.