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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
ContributeDetails
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

LEGEND
Trail Difficulties
  • Access Road/Trail
  • White
  • Green
  • Blue
  • Black
  • Double Black Diamond

Trail Report Status
  • Clear / Green
  • Minor Issue / Yellow
  • Significant Issue / Amber
  • Closed

  • Land Owner Overlay
  • Wilderness (typically no bikes in USA)
  • BLM (public)
  • USFS (Wildlife sanctuaries darker than usfs)
  • State land
  • Indigenous
  • Military
Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Freeze/thaw Cycle
  • Icy
  • Prevalent Mud
  • Wet
  • Variable
  • Ideal
  • Dry
  • Very Dry
  • Map Markers
  • trail Trail Head
  • photo Photo
  • place Directory Listing
  • region Riding Area
  • TTF TTF
  • Parking Parking
  • Viewpoint Viewpoint
  • Information Information
  • Warning Warning
  • Directions Directions
  • Sight Sight
  • Restrooms Restrooms
  • eBike Charging Point eBike Charging Point
  • Water Fountain/Source Water Fountain/Source
  • Gate Gate
  • Trail Sign Trail Sign
  • Table or Bench Table or Bench
  • Ladder Ladder
  • Stairs Stairs
  • Bridge Bridge
  • Camping Camping
  • Cabin Cabin
  • Lodge Lodge
  • Bear Cache Bear Cache
  • Dock Dock
  • Ranger Station Ranger Station
  • Summit Summit
  • Other Other
      No description for Boulder County has been added yet! Login or register to submit one.
      featured
      Region Details
      • 78
      • 22
      • 72
      • 64
      • 50
      • 5

      Region Status
      Caution as of 16 hours
      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      469
      Trails Mountain Bike
      293
      Trails E-Bike
      78
      Trails Hike
      459
      Trails Trail Running
      459
      Trails Horse
      101
      Trails Dirtbike
      30
      Trails Observed Trials
      4
      Trails ATV/ORV/OHV
      31
      Trails Snowmobile
      4
      Trails Snowshoe
      23
      Trails Backcountry Ski
      16
      Trails Nordic Ski
      25
      Total Distance
      645 miles
      Total Descent
      106,700 ft
      Total Vertical
      8,240 ft
      Highest Trailhead
      13,212 ft
      Reports
      3,989
      Photos
      713
      Ridden Counter
      38,771

      Popular Boulder County Mountain Biking Trails

      statustitledifficultyrating
      Upper Bitterbrush
      Hall Ranch
      Nelson Loop
      Hall Ranch
      Lower Bitterbrush
      Hall Ranch
      Wapiti
      Heil Valley Ranch
      Antelope
      Hall Ranch
      Canyon Loop
      Betasso Preserve
      Loop Link
      Betasso Preserve
      Benjamin Loop
      Betasso Preserve
      Picture Rock
      Heil Valley Ranch
      Wild Turkey
      Heil Valley Ranch
      Coal Seam
      Marshall Mesa/Doudy Draw/Flatirons Vista
      Greenbelt Plateau (North Trail)
      Marshall Mesa/Doudy Draw/Flatirons Vista
      Greenbelt Plateau
      Marshall Mesa/Doudy Draw/Flatirons Vista
      Springbrook North
      Marshall Mesa/Doudy Draw/Flatirons Vista
      Springbrook South
      Marshall Mesa/Doudy Draw/Flatirons Vista

      Boulder County Mountain Bike Routes

      titleratingdistance
      West Mag Flow Tour
      Magnolia
      5 miles
      Crazy Eights
      Hall Ranch
      14 miles
      Dirty Bismark
      Marshall Mesa/Doudy Draw/Flatirons Vista
      15 miles
      The Van Hagar - Best of Both Worlds!
      Heil Valley Ranch
      12 miles
      Super Betasso
      Betasso Preserve
      16 miles
      Dirty South
      Marshall Mesa/Doudy Draw/Flatirons Vista
      22 miles
      Marshall Mesa Beginner Ride
      Marshall Mesa/Doudy Draw/Flatirons Vista
      5 miles
      West Magnolia
      Magnolia
      13 miles
      Ya great big turkey
      Heil Valley Ranch
      10 miles
      South Saint Vrain - Figure 8
      Ward
      16 miles

      Recent Ridelog Activity in Region

      Today
      • 0 rides
      • 0 ft avg distance
      Yesterday
      • 100 rides
      • 19 miles avg distance
      Past Week
      • 551 rides
      • 16 miles avg distance

      Photos of Boulder County Mountain Bike

      27 |
      Mar 9, 2019 @ 7:53am
      Mar 9, 2019
      100 |
      Mar 9, 2019 @ 7:47am
      Mar 9, 2019
      192 |
      Mar 9, 2019 @ 7:37am
      Mar 9, 2019
      trail: Davidson Mesa
      46 |
      Mar 9, 2019 @ 5:50am
      Mar 9, 2019

      Videos of Boulder County Mountain Bike

      Hot-Lap
      trail: Hot Lap
      4:02 | 43 | Jun 3, 2020
      Faceplanting a tree
      trail: Dog
      0:20 | 90 | May 18, 2020
      Friday Fail May 2020
      0:17 | 161 | May 8, 2020
      Friday Fail May 2020
      | May 8, 2020

      Current Trail Warnings

      statustraildateconditionuserinfo
      Picture Rock
      Heil Valley Ranch
      Jul 29, 2020 @ 8:16am
      Jul 29, 2020
      Prevalent Mudprovin1327A big rain storm on 7/28 has turned this...

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #1384189RonindriverriddentrailWalker Ranch Loop
      Aug 2, 2020 @ 8:29pm
      8 hours
      user #1293188theborowskivotetrailSugar Magnolia and 1 more
      Aug 2, 2020 @ 7:58pm
      9 hours
      user #1350832meverett172000wishlisttrailRattlesnake Gulch
      Aug 2, 2020 @ 6:28pm
      10 hours
      user #1522818ThomarbauwishlisttrailBetasso Link and 3 more
      Aug 2, 2020 @ 2:17pm
      14 hours
      user #1522818ThomarbauwishlisttrailBoulder Canyon Trail
      Aug 2, 2020 @ 2:16pm
      14 hours

      Recent Comments

      usernametypetitlecommentdate
      user #1261865provin1327trailNew 34Best when run from south to north but watch...
      Jul 20, 2020 @ 7:12am
      Jul 20, 2020
      user #1261865provin1327trailSchoolbusWhy on earth would anyone want to climb this...
      Jul 19, 2020 @ 1:08pm
      Jul 19, 2020
      user #1421706Pcueto3trailWalker Ranch LoopIt’s simple... Clockwise: More fun...
      Jul 14, 2020 @ 9:03am
      Jul 14, 2020
      user #1425515getverttrailWapitiThe side hits and rock jumps were totally due...
      Jul 7, 2020 @ 11:44am
      Jul 7, 2020
      user #1261865provin1327trailWapitiSome trail work has been done just past the...
      Jul 7, 2020 @ 10:30am
      Jul 7, 2020

      Local Badges

      • By roaming50 & contributors
      • Admins: chuktA, jpmcghee, BMBA, darmabum, getvert, Pumpntrail
      • #15769 - 3,113 views
      • boulder county activity log | embed map of Boulder County mountain bike trails | boulder county mountain biking points of interest
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