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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
  • 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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      Region Details
      • 112
      • 129
      • 87
      • 80
      • 72
      • 14
      • 2

      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      725
      Trails Mountain Bike
      501
      Trails E-Bike
      221
      Trails Horse
      210
      Trails Hike
      711
      Trails Trail Running
      710
      Trails Dirtbike/Moto
      46
      Trails Observed Trials
      10
      Trails ATV/ORV/OHV
      47
      Trails Snowmobile
      12
      Trails Snowshoe
      37
      Trails Backcountry Ski
      23
      Trails Nordic Ski
      33
      Total Distance
      899 miles
      Total Descent
      137,795 ft
      Total Vertical
      8,630 ft
      Highest Trailhead
      13,460 ft
      Reports
      12,259
      Photos
      1,004
      Ridden Counter
      127,374

      Popular Boulder County Mountain Biking Trails

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

      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
      Hall Ranch: Intermediate Fun
      Hall Ranch
      7 miles
      Marshall Mesa Doudy Draw Loop
      Marshall Mesa/Doudy Draw/Flatirons Vista
      12 miles
      Betasso Loops
      Betasso Preserve
      7 miles
      Hall Ranch Technical Descent
      Hall Ranch
      12 miles
      Super Betasso via Four Mile
      Betasso Preserve
      15 miles
      Waldrop/Snowshoe Loop
      Brainard Lake and Peaceful Valley
      5 miles
      South Saint Vrain - Figure 8
      Brainard Lake and Peaceful Valley
      16 miles

      Recent Ride Log Activity in Region

      Today
      • 0 rides
      Yesterday
      • 8 rides
      Past Week
      • 231 rides

      Photos of Boulder County Mountain Bike

      300 |
      Mar 9, 2019 @ 7:47am
      Mar 9, 2019
      750 |
      Mar 9, 2019 @ 7:37am
      Mar 9, 2019
      trail: Davidson Mesa
      112 |
      Mar 9, 2019 @ 5:50am
      Mar 9, 2019
      trail: Canyon Loop
      584 |
      Apr 13, 2018 @ 7:40am
      Apr 13, 2018
      trail: Fourmile Link
      367 |
      Apr 13, 2018 @ 7:40am
      Apr 13, 2018
      497 |
      Jun 6, 2017 @ 1:31pm
      Jun 6, 2017
      trail: Picture Rock
      578 |
      Feb 27, 2015 @ 11:08am
      Feb 27, 2015
      890 |
      Feb 14, 2015 @ 3:33pm
      Feb 14, 2015

      Videos of Boulder County Mountain Bike

      David Lee Roth trail
      14 | Nov 8, 2023
      Valmont Slopestyle jump line
      trail: Slopestyle
      3 | Nov 8, 2023
      | Nov 8, 2023
      | Nov 8, 2023
      STEEZL - a 155mm Steel Enduro Race Weapon
      | Mar 4, 2023
      STEEZL - a 155mm Steel Enduro Race Weapon
      | Mar 3, 2023
      Moon Booter
      | Mar 28, 2022
      Western
      34 | Dec 10, 2020

      Current Trail Warnings

      statustraildateconditionuserinfo
      Picture Rock
      Heil Valley Ranch
      Nov 27, 2023 @ 1:50pm
      1 day
      Prevalent MudgetvertClosed for muddy conditions. Status will...
      Green Line
      Erie Singletrack
      Nov 27, 2023 @ 5:57am
      1 day
      Snow CoveredWendyBMA BMAClosed for winter conditions. Will...
      Lower Black
      Erie Singletrack
      Nov 27, 2023 @ 5:57am
      1 day
      Snow CoveredWendyBMA BMAClosed for winter conditions. Will...

      Recent Trail Reports

      statustraildateconditioninfouser
      Loop Link
      Betasso Preserve
      Nov 26, 2023 @ 3:05pm
      2 days
      Snow Packed About an inch of packed snow, some bare...WendyBMA BMA
      Canyon Loop
      Betasso Preserve
      Nov 26, 2023 @ 3:05pm
      2 days
      Snow Packed About an inch of packed snow, some bare...WendyBMA BMA
      Benjamin Loop
      Betasso Preserve
      Nov 26, 2023 @ 3:05pm
      2 days
      Snow Packed About an inch of packed snow, some bare...WendyBMA BMA
      Slopestyle
      Valmont Bike Park
      Nov 24, 2023 @ 7:05am
      Nov 24, 2023
      Snow Covered Closed for winter conditionsWendyBMA BMA
      The Glades
      Valmont Bike Park
      Nov 24, 2023 @ 7:05am
      Nov 24, 2023
      Snow Covered Closed for winter conditionsWendyBMA BMA
      Pump Track (large)
      Valmont Bike Park
      Nov 24, 2023 @ 7:05am
      Nov 24, 2023
      Snow Covered Closed for winter conditionsWendyBMA BMA
      Skillz Loop
      Valmont Bike Park
      Nov 24, 2023 @ 7:05am
      Nov 24, 2023
      Snow Covered Closed for winter conditionsWendyBMA BMA
      North Cross County - Gear Down
      Valmont Bike Park
      Nov 24, 2023 @ 7:05am
      Nov 24, 2023
      Snow Covered Closed for winter conditionsWendyBMA BMA
      North Cross Country - Rivet
      Valmont Bike Park
      Nov 24, 2023 @ 7:05am
      Nov 24, 2023
      Snow Covered Closed for winter conditionsWendyBMA BMA
      North Cross Country - Start-finish
      Valmont Bike Park
      Nov 24, 2023 @ 7:05am
      Nov 24, 2023
      Snow Covered Closed for winter conditionsWendyBMA BMA

      Activity Feed

      usernameactiontypetitledate
      mountainmonkwishlistrouteWest Magnolia Tour
      Nov 27, 2023 @ 4:24pm
      22 hours
      mountainmonkcheckinrouteEasiest Brainard Fatbike Route
      Nov 27, 2023 @ 3:34pm
      23 hours
      mountainmonkriddenrouteEasiest Brainard Fatbike Route
      Nov 27, 2023 @ 3:34pm
      23 hours
      getvertaddreportPicture Rock
      Nov 27, 2023 @ 1:53pm
      1 day
      afelipezabalarwishlisttrailLefthand Access 1
      Nov 26, 2023 @ 9:21pm
      2 days

      Recent Comments

      usernametypetitlecommentdate
      ronbronxEneVKtrailBetasso LinkIt's a beast! To much for my old body right...
      Nov 23, 2023 @ 8:28am
      Nov 23, 2023
      stevemokantrailBon ScottUnfortunately some people are building alt...
      Nov 21, 2023 @ 2:53pm
      Nov 21, 2023
      123RidestrailCoal Creek TrailiT GoEs FOrReVEer
      Nov 2, 2023 @ 1:06pm
      Nov 2, 2023
      ColoradoarkreportAntelopeDamp outside, but perfect trail condirions!
      Oct 26, 2023 @ 11:43am
      Oct 26, 2023
      Briano222trailToll TrailThe first 2 miles of this is a must add on so...
      Oct 9, 2023 @ 2:34pm
      Oct 9, 2023

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike501617 miles68,655 ft264 miles6,850 ft
      82912,03576147,593
      E-Bike221341 miles22,707 ft144 miles6,745 ft
      7,0773,565
      Horse210287 miles49,416 ft131 miles7,887 ft
      2,820454
      Hike711888 miles135,974 ft393 miles8,632 ft
      17610,9567111,919
      Trail Running710882 miles135,256 ft391 miles8,632 ft
      310,9547011,645
      Dirtbike/Moto46117 miles11,355 ft48 miles4,383 ft
      42,158129
      Observed Trials1022 miles2,238 ft10 miles1,788 ft
      2216
      ATV/ORV/OHV47120 miles11,476 ft49 miles4,383 ft
      2,15713
      Snowmobile1231 miles2,520 ft8 miles2,654 ft
      1511
      Snowshoe3776 miles8,652 ft27 miles6,309 ft
      122844182
      Backcountry Ski2347 miles2,776 ft10 miles3,596 ft
      1971,215
      Nordic Ski3375 miles8,566 ft27 miles3,848 ft
      22710861
      • By roaming50 & contributors
      • Admins: jpmcghee, msmcfate, cmcquade, BMA, darmabum, getvert, mpopetz, Pumpntrail, Iowegian
      • #15769 - 18,224 views

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