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Trail Conditions
  • Unknown
  • Snow Groomed
  • Snow Packed
  • Snow Covered
  • Snow Cover Partial
  • 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
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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.
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      As of the 2010 United States Census, the population was 11,406. Its county seat is Boulder. The county was created in 1865 and named for President Thomas Jefferson.
      Activities Click to view
      Region Details
      • 105
      • 20
      • 77
      • 38
      • 3

      Stats

      Avg Trail Rating
      Trails (view details)
      248
      Trails Mountain Bike
      243
      Trails E-Bike
      177
      Trails Horse
      196
      Trails Hike
      241
      Trails Trail Running
      240
      Trails Dirtbike/Moto
      187
      Trails Observed Trials
      5
      Trails ATV/ORV/OHV
      156
      Trails Snowmobile
      3
      Trails Snowshoe
      11
      Trails Backcountry Ski
      3
      Trails Nordic Ski
      8
      Total Distance
      563 miles
      Total Descent
      74,462 ft
      Total Vertical
      4,776 ft
      Highest Trailhead
      8,957 ft
      Reports
      614
      Photos
      221
      Ridden Counter
      2,692

      Popular Jefferson County Mountain Biking Trails

      statustitledifficultyrating
      Eastside
      Lewis and Clark Caverns
      Middle View
      Lewis and Clark Caverns
      Cave Gulch (lower)
      Lewis and Clark Caverns
      Danmore Mine
      Lewis and Clark Caverns
      Eastside (HQ)
      Lewis and Clark Caverns
      Cave Gulch
      Lewis and Clark Caverns
      Cave Gulch (mid)
      Lewis and Clark Caverns
      Muskrat Creek
      South Elkhorns
      Delmoe Rd Detour
      Pipestone
      Fishing Access
      Lewis and Clark Caverns
      BLM 12
      Pipestone
      BLM 15
      Pipestone
      Windmill
      Pipestone
      Doubletrack Declivity
      Pipestone
      Creekside
      Pipestone

      Jefferson County Mountain Bike Routes

      titleratingdistance
      HCC Group Ride - Pipestone Loop
      Pipestone
      6 miles
      Dry Mountain Loop
      Pipestone
      26 miles
      Easter Washout Lollipop Loop
      Pipestone
      4 miles
      HCC Pipestone Course
      Pipestone
      3 miles
      Tizer Traverse
      South Elkhorns
      20 miles
      Curly Lake full ride-shuttle
      Whitehall
      17 miles
      Rawhide - Muskrat Loop
      South Elkhorns
      20 miles
      Curly Lake Highline
      Whitehall
      19 miles
      Tizer Traverse Remix
      South Elkhorns
      23 miles
      Basin to Mt City
      Little Boulder
      37 miles

      Recent Ride Log Activity in Region

      Today
      • 0 rides
      Yesterday
      • 1 rides
      Past Week
      • 11 rides

      Photos of Jefferson County Mountain Bike

      trail: Eastside
      5 |
      Apr 6, 2025 @ 8:36pm
      Apr 6, 2025
      5 |
      Apr 6, 2025 @ 7:23pm
      Apr 6, 2025
      5 |
      Apr 6, 2025 @ 7:23pm
      Apr 6, 2025
      7 |
      Apr 6, 2025 @ 7:22pm
      Apr 6, 2025
      13 |
      Jul 10, 2024 @ 8:53am
      Jul 10, 2024
      trail: Muskrat Creek
      38 |
      Oct 20, 2023 @ 9:07am
      Oct 20, 2023
      trail: Muskrat Creek
      284 |
      Jul 25, 2017 @ 9:47pm
      Jul 25, 2017
      trail: Muskrat Creek
      263 |
      Jul 25, 2017 @ 9:46pm
      Jul 25, 2017

      Videos of Jefferson County Mountain Bike

      youtuber Custom Fat Bike Wheelset First Ride | RSD...
      12:03 | 199 | Jul 20, 2022 , Whitehall
      youtuber Custom Fat Bike Wheelset First Ride | RSD...
      trail: Eastside
      12:03 | 135 | Jul 20, 2022 , Whitehall
      youtuber Why I Don't Ride My 29er MTB Anymore | 29er vs...
      trail: BLM 20
      10:29 | 285 | Jan 3, 2022 , Whitehall
      Mountain biking Deerlodge National Forest -...
      21:03 | 872 | Jun 17, 2019 , Boulder

      Current Trail Warnings

      statustraildateconditionuserinfo
      Cave Gulch
      Lewis and Clark Caverns
      Apr 6, 2025 @ 11:43am
      Apr 6, 2025
      Prevalent MudmasonskisVery muddy in the top switchback section....

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      BrokerMikeriddentrailactivity #69675117
      Apr 15, 2025 @ 5:41am
      Apr 15, 2025
      lqNhvmaddphotoactivity #69163872
      Apr 6, 2025 @ 8:36pm
      Apr 6, 2025
      wolfgang97addphotoactivity #69162487 and 2 more
      Apr 6, 2025 @ 7:22pm
      Apr 6, 2025
      Scottyboardaddreportactivity #69146729
      Apr 6, 2025 @ 2:10pm
      Apr 6, 2025
      masonskisaddreportactivity #69134442 and 3 more
      Apr 6, 2025 @ 11:37am
      Apr 6, 2025

      Recent Comments

      usernametypetitlecommentdate
      wolfgang97trailFishing Accesseasy scenic climb
      Apr 6, 2025 @ 7:26pm
      Apr 6, 2025
      MT36trailMuskrat CreekReally good trail. Remote, wild, technical,...
      Aug 22, 2023 @ 12:10pm
      Aug 22, 2023
      sharaldsreportMuskrat CreekI was able to haul one tree out of the way...
      Aug 13, 2023 @ 8:18am
      Aug 13, 2023
      MattinButtetrailElkhorn TroadCame back after 3 years with a better bike and...
      Jul 5, 2023 @ 10:54am
      Jul 5, 2023
      MattinButtetrailTwentyone GulchThe middle section of this trail where it's...
      Jul 4, 2023 @ 9:27pm
      Jul 4, 2023

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike243556 miles73,314 ft218 miles4,777 ft
      217614161,945
      E-Bike177437 miles50,804 ft168 miles3,675 ft
      4075142
      Horse196457 miles59,400 ft178 miles4,147 ft
      2524
      Hike241544 miles71,870 ft213 miles4,777 ft
      26137275
      Trail Running240539 miles71,283 ft212 miles4,777 ft
      16126140
      Dirtbike/Moto187469 miles56,099 ft182 miles3,806 ft
      12312124
      Observed Trials521 miles1,129 ft7 miles883 ft
      1
      ATV/ORV/OHV156430 miles44,810 ft158 miles3,773 ft
      208115
      Snowmobile316 miles1,647 ft4 miles2,267 ft
      311
      Snowshoe1142 miles5,817 ft16 miles4,281 ft
      275
      Backcountry Ski310 miles2,057 ft4 miles3,606 ft
      1913
      Nordic Ski833 miles3,593 ft11 miles3,819 ft
      2347
      • By ianjonesTF Pro SWMMBA & contributors
      • Admins: MONTANABIKERMAN, evasive, wyomont
      • #39372 - 1,154 views

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