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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
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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      King County is home to some of Washington's best and most famous mountain biking, from the Issaquah Alps, home to legendary Tiger Mountain & Duthie Hill, and new developments such as Raging River, to the XC heartland in the Maple Valley & Black Diamond lowlands, not only is King County Washington's most inhabited county, it also offers some of the most varied and interesting biking around. Now part of Evergreen Mountain Bike Alliance's 'Cascades to Sound' Chapter.
      Region Details
      • 223
      • 88
      • 439
      • 391
      • 81
      • 19
      • 1

      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      1,733
      Trails Mountain Bike
      1,242
      Trails E-Bike
      218
      Trails Hike
      1,585
      Trails Trail Running
      1,578
      Trails Horse
      177
      Trails Dirtbike/Moto
      10
      Trails Observed Trials
      10
      Trails ATV/ORV/OHV
      11
      Trails Snowshoe
      23
      Trails Downhill Ski
      38
      Trails Backcountry Ski
      6
      Trails Nordic Ski
      14
      Total Distance
      1,273 mile
      Total Descent
      194,402 ft
      Total Vertical
      5,761 ft
      Highest Trailhead
      5,768 ft
      Reports
      20,238
      Photos
      4,725
      Ridden Counter
      368,162

      Outside+ Logo Articles

      The Best Hikes Near Seattle for Every Kind of Hiker
      Jan 25, 2022 from backpacker.com
      Looking for a great dayhike, weekend trip, or multiday expedition near Seattle? We've got you covered.
      Video & Event Recap: Sweetlines Sugar Showdown 2019
      Jul 29, 2019 from pinkbike.com
      The Sugar Showdown pro competition was an FMB Bronze Event and part of the women’s slopestyle tour.
      Seattle, WA: Mount Si
      Sep 19, 2013 from backpacker.com
      A locals' favorite, this challenging dayhike up Mount Si is less than an hour from Seattle and features eagle-eye views of the Snoqualmie River...
      Sub Regions

      Popular King County Mountain Biking Trails

      statustitledifficultyrating
      Master Link
      Tiger Mountain State Forest
      Quick Link
      Tiger Mountain State Forest
      Connector Trail
      Tiger Mountain State Forest
      Honey Badger
      Duthie Hill Mountain Bike Park
      Flow State Upper
      Raging River State Forest
      Duthie Access Road to Clearing
      Duthie Hill Mountain Bike Park
      Flow State Lower
      Raging River State Forest
      Parking lot connector trail
      Duthie Hill Mountain Bike Park
      Flow Park Walk-up Trail
      Duthie Hill Mountain Bike Park
      Deuces Wild
      Duthie Hill Mountain Bike Park
      Upward Mobility
      Raging River State Forest
      Voodoo Child
      Duthie Hill Mountain Bike Park
      Ryan's Eternal Flow Line
      Duthie Hill Mountain Bike Park
      Poppin' Tops Lower
      Raging River State Forest
      2 Hi / Jabulani
      Duthie Hill Mountain Bike Park

      King County Mountain Bike Routes

      titleratingdistance
      Up, then Flow
      Raging River State Forest
      5 miles
      OTG to Ebad and out
      Tiger Mountain State Forest
      10 miles
      2022 CDC: Tiger Mt Enduro - Lite
      Tiger Mountain State Forest
      7 miles
      Olallie 1st Viewpoint Out-and-Back
      South Fork Snoqualmie
      9 miles
      Canyon Creek DH Loop
      Raging River State Forest
      13 miles
      Tiger: The Milk Run
      Tiger Mountain State Forest
      10 miles
      Raging Loop
      Snoqualmie Ridge
      13 miles
      Tiny Tolt Loop
      Carnation
      5 miles
      Raging River - Full Lollipop
      Snoqualmie Ridge
      19 miles
      Side Hustle Loop
      Tiger Mountain State Forest
      9 miles

      Recent Ride Log Activity in Region

      Today
      • 0 rides
      Yesterday
      • 304 rides
      Past Week
      • 1,417 rides

      Photos of King County Mountain Bike

      trail: NOTG
      1,105 |
      Sep 4, 2018 @ 2:05am
      Sep 4, 2018
      862 |
      May 25, 2018 @ 11:31am
      May 25, 2018
      trail: Master Link
      749 |
      Apr 13, 2017 @ 10:04pm
      Apr 13, 2017
      trail: Master Link
      983 |
      Apr 13, 2017 @ 10:04pm
      Apr 13, 2017
      trail: Paramount
      571 |
      Oct 19, 2016 @ 12:04am
      Oct 19, 2016
      | 1 comments
      trail: Voodoo Child
      583 |
      Jan 27, 2016 @ 6:16pm
      Jan 27, 2016
      trail: Gravy Train
      1,004 |
      Jan 11, 2012 @ 7:42am
      Jan 11, 2012
      1,459 |
      May 17, 2009 @ 12:27pm
      May 17, 2009
      | 6 comments

      Videos of King County Mountain Bike

      Shredding gnar and eating it
      46 | Jun 25, 2022
      Step up sends me
      52 | Jun 20, 2022
      Older flying squirrel clip
      34 | May 26, 2022
      HLC line
      trail: HLC
      45 | May 24, 2022
      The hardest sections of Preadator
      trail: Predator
      70 | May 22, 2022
      Fun whips on Squirrel
      19 | May 21, 2022
      Sending it on HT MTB - Kona Mahuna
      19 | May 12, 2022

      Current Trail Warnings

      statustraildateconditionuserinfo
      Exodus
      Summit Ridge
      Jul 2, 2022 @ 7:03pm
      6 hours
      DrykokofoshoHeavily overgrown
      Salvation
      Summit Ridge
      Jul 2, 2022 @ 7:03pm
      6 hours
      DrykokofoshoHeavily overgrown
      12 Step
      Duthie Hill Mountain Bike Park
      Jun 29, 2022 @ 4:06pm
      Jun 29, 2022
      VariableWedin58

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #3097942KevinkoolxcommenttrailMax Eagle
      Jul 3, 2022 @ 12:19am
      27 mins
      user #1008728Slong9riddentrailAtlas
      Jul 2, 2022 @ 10:44pm
      2 hours
      user #2593801prohtowishlistrouteBUDU Soaring Eagle 2021
      Jul 2, 2022 @ 10:02pm
      3 hours
      user #3097830KipCarletonO03wishlisttrailOlallie Trail
      Jul 2, 2022 @ 8:08pm
      5 hours
      user #1339690dgbiker1votetrailNOTG
      Jul 2, 2022 @ 7:57pm
      5 hours

      Recent Comments

      usernametypetitlecommentdate
      user #3097942KevinkoolxtrailMax EagleOvergrown with thorn bushes and low hanging...
      Jul 3, 2022 @ 12:19am
      27 mins
      user #806988twowheelexplorertrailMidtown (Upper)Overgrown. Wear pants and a long jersey if...
      Jul 2, 2022 @ 3:25pm
      9 hours
      user #806988twowheelexplorertrailMidtown XCOvergrown and dry. Wear pants and a long...
      Jul 2, 2022 @ 3:23pm
      9 hours
      user #806988twowheelexplorertrailUpper Ivan XCOvergrown and dry. Wear pants and a long...
      Jul 2, 2022 @ 3:21pm
      9 hours
      user #2931233RageshtagtrailAtlasRode this today, definitely more difficult...
      Jul 2, 2022 @ 11:42am
      13 hours

      Local Badges


      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike1,242919 miles123,717 ft377 miles5,030 ft
      4,62820,145136310,950
      E-Bike218222 miles20,906 ft75 miles4,964 ft
      14,18024,450
      Hike1,5851,214 mile164,127 ft460 miles5,761 ft
      9618,7035511,287
      Trail Running1,5781,212 mile163,976 ft460 miles5,761 ft
      18,7013810,552
      Horse177232 miles23,786 ft85 miles4,075 ft
      5,83482
      Dirtbike/Moto1020 miles1,982 ft7 miles3,301 ft
      5,65636
      Observed Trials1020 miles1,982 ft7 miles3,301 ft
      10216
      ATV/ORV/OHV1120 miles1,982 ft7 miles3,301 ft
      5,658176
      Snowshoe2331 miles5,226 ft11 miles5,397 ft
      874
      Downhill Ski3815 miles15,554 ft15 miles1,211 ft
      152,137
      Backcountry Ski610 miles741 ft2 miles4,203 ft
      17341
      Nordic Ski1420 miles4,623 ft11 miles1,932 ft
      8352
      • By k-w & contributors
      • Admins: EMBA, NMA, codyolsen, boxxerace, jmahler, Alexbeard9, sanfret, mattcr
      • #22529 - 10,634 views
      • king county activity log | embed map of King County mountain bike trails | king county mountain biking points of interest polygons

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