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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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      Activities Click to view
      Region Details
      • 6
      • 65
      • 7
      • 3

      Region Status
      Open as of Jun 13, 2021
      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      84
      Trails Mountain Bike
      81
      Trails E-Bike
      28
      Trails Hike
      83
      Trails Trail Running
      83
      Total Distance
      11 miles
      Total Descent
      1,259 ft
      Total Vertical
      361 ft
      Highest Trailhead
      432 ft
      Reports
      59
      Photos
      49
      Ridden Counter
      4,828
      Sub Regions

      Recent Ridelog Activity in Region

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

      Photos of Seatac Mountain Bike

      37 |
      Feb 24, 2021 @ 3:25pm
      Feb 24, 2021
      33 |
      Feb 24, 2021 @ 3:24pm
      Feb 24, 2021
      30 |
      Feb 24, 2021 @ 3:24pm
      Feb 24, 2021
      30 |
      Feb 24, 2021 @ 3:24pm
      Feb 24, 2021
      trail: Daytona
      57 |
      Jun 26, 2020 @ 2:34pm
      Jun 26, 2020
      trail: Tub Lake
      52 |
      Jun 26, 2020 @ 1:26pm
      Jun 26, 2020
      trail: Tub Lake
      76 |
      Jun 26, 2020 @ 1:24pm
      Jun 26, 2020
      trail: SST Ridgeline
      211 |
      Apr 22, 2020 @ 3:41pm
      Apr 22, 2020

      Videos of Seatac Mountain Bike

      greenlake dirt jumps
      trail: Dirt Jumps
      0:31 | 262 | Jul 1, 2015
      Poco dirt jumps
      trail: Dirt Jumps
      0:23 | 187 | Feb 22, 2015
      Redmond Bike Park 2014
      trail: Dirt Jumps
      1:30 | 295 | Oct 21, 2014
      DJ on DH
      trail: Dirt Jumps
      0:48 | 303 | Apr 25, 2014
      Greenlake Dirt Jumps
      trail: Dirt Jumps
      0:18 | 143 | Apr 4, 2014
      Greenlake
      trail: Dirt Jumps
      1:35 | 244 | Oct 7, 2013
      The Grotto dirt jumps
      trail: Dirt Jumps
      0:34 | 384 | Mar 12, 2013
      One Sunny Day
      trail: Dirt Jumps
      1:30 | 136 | Feb 3, 2013

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      user #635813MikewehrleywishlisttrailDirt Jumps
      Oct 20, 2021 @ 7:19pm
      1 day
      user #2878385Khouser82wishlisttrailWestside Trail
      Oct 17, 2021 @ 1:00pm
      Oct 17, 2021
      user #2821850SageSmithriddentrailTrail
      Sep 25, 2021 @ 5:54pm
      Sep 25, 2021
      user #2717168ZacharyyyriddentrailNorth Seatac BMX Track
      Aug 19, 2021 @ 12:03pm
      Aug 19, 2021
      user #2810150ecHE2GriddentrailAccess Road and 2 more
      Aug 18, 2021 @ 8:49am
      Aug 18, 2021

      Recent Comments

      usernametypetitlecommentdate
      user #555326b0ingtrailSpace Mountain's RevengeDry but uninspiring.
      Feb 24, 2021 @ 3:26pm
      Feb 24, 2021
      user #2361005Amarat123trailLoose ChainWas riding this trail system, happened upon...
      Aug 16, 2020 @ 6:07pm
      Aug 16, 2020
      user #1388838ryngtrail200th AccessThis access trail is locked. The whole area...
      Aug 30, 2018 @ 7:38pm
      Aug 30, 2018

      Local Badges

      Bike & Skill Parks

      nametypecityrating
      North SeaTac BMXskill parkSeatac

      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike8110 miles1,247 ft3 miles361 ft
      #853#464495914,863
      E-Bike285 miles141 ft4,249 ft315 ft
      4475
      Hike8311 miles1,234 ft3 miles361 ft
      #680#4245661
      Trail Running8311 miles1,234 ft3 miles361 ft
      #683#4255687
      • By jmahler TRAILFORKS & contributors
      • Admins: EMBA, NMA, boxxerace, jmahler
      • #13188 - 1,559 views

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