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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 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
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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      Grand County Colorado
      Activities Click to view
      Region Details
      • 31
      • 1
      • 66
      • 108
      • 54
      • 8
      • 2

      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      297
      Trails Mountain Bike
      274
      Trails E-Bike
      20
      Trails Hike
      171
      Trails Trail Running
      169
      Trails Horse
      31
      Trails Dirtbike/Moto
      11
      Trails ATV/ORV/OHV
      2
      Trails Snowmobile
      1
      Trails Snowshoe
      2
      Trails Nordic Ski
      2
      Total Distance
      415 miles
      Total Descent
      94,831 ft
      Total Vertical
      5,168 ft
      Highest Trailhead
      12,730 ft
      Reports
      1,770
      Photos
      844
      Ridden Counter
      65,702

      Popular Trail Networks

      title
      Granby Ranch 18 13 15 3
      Trestle Bike Park 9 20 16 5
      Idlewild 11 9
      Vasquez 2 14 6
      Fraser Valley 3 8 3
      view all areas »

      Popular Grand County Mountain Biking Trails

      statustitledifficultyrating
      Boot Camp
      Trestle Bike Park
      Beall Ucanb
      Trestle Bike Park
      Free Speech
      Fraser Valley
      Lower Long Trail
      Trestle Bike Park
      No Quarter
      Fraser Valley
      Jury Duty
      Trestle Bike Park
      Shy Ann
      Trestle Bike Park
      Blue Crush
      Trestle Bike Park
      Rainmaker (Middle)
      Trestle Bike Park
      Turnpike Road
      Trestle Bike Park
      Long Trail
      Fraser Valley
      Rainmaker (Lower)
      Trestle Bike Park
      Free Speech (Lower)
      Fraser Valley
      Spicy Chicken
      Trestle Bike Park
      Sunspot Road
      Trestle Bike Park

      Grand County Mountain Bike Routes

      titleratingdistance
      Creekside Combo Demo
      Idlewild
      15 miles
      G3 Stage-3 Loop-2 and Finish
      Idlewild
      11 miles
      Brute Squad 50 - Part 1
      Fraser
      33 miles
      Brute Squad 50 - Part 2
      Trestle Bike Park
      20 miles
      Fun Winter Park Loop
      Winter Park
      15 miles
      WP good loop east
      Idlewild
      8 miles
      Winter Park Classics - King of the Rockies 2021 race
      Winter Park
      25 miles
      Big Mountain Enduro - Winter Park 2021 race
      Trestle Bike Park
      16 miles
      Big Mountain Enduro - Winter Park 2019 race
      Trestle Bike Park
      12 miles
      2019 USAC Nationals Enduro Course race
      Fraser Valley
      19 miles

      Recent Ridelog Activity in Region

      Today
      • 4 rides
      Yesterday
      • 4 rides
      Past Week
      • 36 rides

      Photos of Grand County Mountain Bike

      trail: The Boulevard
      466 |
      Feb 2, 2018 @ 2:55pm
      Feb 2, 2018
      107 |
      Aug 24, 2017 @ 11:34am
      Aug 24, 2017
      trail: Green World
      101 |
      Aug 3, 2017 @ 4:07pm
      Aug 3, 2017
      98 |
      Sep 26, 2016 @ 11:21am
      Sep 26, 2016
      93 |
      Sep 20, 2016 @ 8:51pm
      Sep 20, 2016
      trail: The Boulevard
      166 |
      Aug 25, 2016 @ 8:13pm
      Aug 25, 2016
      trail: Silky Johnson
      141 |
      Aug 23, 2016 @ 9:30pm
      Aug 23, 2016
      239 |
      Sep 18, 2009 @ 7:26pm
      Sep 18, 2009

      Videos of Grand County Mountain Bike

      Riley Sends IT,  into a tree
      204 | Oct 5, 2021
      Friday Fail: Banana Peel Endo
      60 | Sep 21, 2021
      Paper Boy!
      trail: Paper Boy
      8 | Sep 13, 2021
      36th Chamber
      27 | Sep 12, 2021
      36th Chamber
      15 | Sep 10, 2021
      36th Chamber
      13 | Sep 10, 2021
      36th Chamber
      11 | Sep 10, 2021
      Top of Rainmaker at Trestle Bike Park
      30 | Aug 26, 2021

      Current Trail Warnings

      statustraildateconditionuserinfo
      Salad Bowl East
      Granby
      Oct 16, 2021 @ 12:41pm
      Oct 16, 2021
      Freeze/thaw Cyclerossevan

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #2753787Barbi0722riddentrailSouth Fork Loop
      Oct 22, 2021 @ 12:21pm
      3 hours
      user #1381031rossevanaddreportCrosstrails
      Oct 20, 2021 @ 4:04pm
      2 days
      user #1381031rossevanaddreportCrosstrails Access
      Oct 20, 2021 @ 4:04pm
      2 days
      user #876728briceshirbachaddvideoAll Play, No Work.
      Oct 19, 2021 @ 1:29pm
      Oct 19, 2021
      user #690654trestlekrewriddentrailFroot Loop
      Oct 17, 2021 @ 12:10pm
      Oct 17, 2021

      Recent Comments

      usernametypetitlecommentdate
      user #1568473shadow117trailBeall UcanbI stand by my comment above! Either dumb the...
      Oct 2, 2021 @ 10:04am
      Oct 2, 2021
      user #833759dayja95trailCrosstrailsSouth end of crosstrails is closed for...
      Aug 31, 2021 @ 3:17pm
      Aug 31, 2021
      user #1582588ClydesdaleMicktrailNorthwest PassageGreat trail! Like a straight pump track, it is...
      Aug 14, 2021 @ 6:39am
      Aug 14, 2021
      user #1917168Ronchez23trailSpace ForceNot space force!
      Aug 10, 2021 @ 1:37am
      Aug 10, 2021
      user #1568473shadow117trailBeall UcanbThis trail should be renamed to believe in...
      Aug 7, 2021 @ 12:37pm
      Aug 7, 2021

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike274329 miles69,721 ft168 miles4,711 ft
      8021,7681726,956
      E-Bike2043 miles5,705 ft19 miles2,736 ft
      1,50884
      Hike171272 miles56,430 ft134 miles5,167 ft
      331,72911,120
      Trail Running169272 miles56,430 ft134 miles5,167 ft
      1,729136
      Horse31101 miles24,649 ft49 miles5,082 ft
      5371
      Dirtbike/Moto928 miles3,786 ft13 miles4,124 ft
      5245
      ATV/ORV/OHV221 miles2,940 ft10 miles2,667 ft
      5172
      Snowmobile11 mile404 ft4,593 ft404 ft
      12
      Snowshoe23 miles722 ft2 miles587 ft
      355
      Nordic Ski23 miles722 ft2 miles587 ft
      321,170
      • By robbinsdr GMBA & contributors
      • Admins: jpmcghee, msmcfate, cmcquade, GMBA, STT
      • #12863 - 3,364 views

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