close
3D
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
ATV/ORV/OHV Filter
Max Vehicle Width
inches
US Cell Coverage
Legend
cell carrier legend

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.
Trails Deemphasized
Trails are shown in grey.
disable
Only show trails with NO bikes.
enable

Save the current map location and zoom level as your default home location whenever this page is loaded.

Save
      Marckworth Forest offers some wonderful walking among forest, marshes, and rumpled rocky hills, as long as you're ok doing your own routefinding on logging roads. It's a quiet, little known and infrequently visited spot, less than an hour's drive from Seattle.

      Marckworth Forest is made up of state trust lands managed by the Department of Natural Resources as a working forest. Timber harvesting here helps provide revenue to beneficiaries like schools and universities. While Marckworth Forest is open to the public for dispersed recreation, it does not have designated recreational trails or facilities like trailheads, designated parking areas, or campgrounds. Visitors may encounter active timber operations and logging trucks, or other vehicles, on forest roads and should be alert when recreating here.

      That also means you'll want to come prepared. While there are plenty of routes to explore here (mostly on logging roads), there are no signs or maps to guide your way. Dispersed recreation is permitted, but because there's no formalized trail system, your experience here will likely feel more remote and rugged than many trails in the area.

      Many folks explore the Stossel Creek area, which is where the driving directions below guide you. But there is no designated parking area. If you go, be sure to park in such a way that respects any posted signage, and traffic can flow unobstructed.
      Activities Click to view
      Region Details
      • 3
      • 2
      • 2

      Region Status
      Open as of Mar 4, 2022
      Local Trail Association

      Stats

      Trails (view details)
      7
      Trails Mountain Bike
      7
      Trails E-Bike
      4
      Trails Hike
      7
      Trails Trail Running
      3
      Total Distance
      19 miles
      Total Descent Distance
      7 miles
      Total Descent
      972 ft
      Total Vertical
      982 ft
      Highest Trailhead
      1,416 ft
      Photos
      3
      Ridden Counter
      120

      Popular Marckworth State Forest Mountain Biking Trails

      Recent Ride Log Activity in Region

      Today
      • 0 rides
      Yesterday
      • 0 rides
      Past Week
      • 0 rides

      Photos of Marckworth State Forest Mountain Bike

      14 |
      Feb 21, 2025 @ 3:26pm
      Feb 21, 2025
      15 |
      Feb 21, 2025 @ 3:26pm
      Feb 21, 2025
      15 |
      Feb 21, 2025 @ 3:26pm
      Feb 21, 2025

      Activity Feed

      usernameactiontypetitledate
      ofirlaviwishlisttrailactivity #72454957
      May 26, 2025 @ 10:40am
      May 26, 2025
      Bullitt4812wishlistregionactivity #68787360
      Mar 31, 2025 @ 9:31pm
      Mar 31, 2025
      HayesdC46Caddphotoactivity #66560073 and 2 more
      Feb 21, 2025 @ 3:26pm
      Feb 21, 2025
      HayesdC46Criddentrailactivity #66559748
      Feb 21, 2025 @ 3:21pm
      Feb 21, 2025
      SfURBWwishlistregionactivity #51857834
      Apr 29, 2024 @ 4:26pm
      Apr 29, 2024

      Nearby Areas

      namedistance
      Cherry Valley 11 13 12.3 km
      Moss Lake 15 15 24.1 km
      King Lake 16 km
      Osprey Park 57.3 km
      Al Borlin Park 28.3 km

      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesridelogs
      Mountain Bike719 miles971 ft7 miles981 ft
      #8,0383119
      E-Bike417 miles863 ft6 miles669 ft
      1
      Hike719 miles971 ft7 miles981 ft
      #12,3707
      Trail Running317 miles814 ft6 miles669 ft

      Downloading of trail gps tracks in kml & gpx formats is enabled for Marckworth State Forest.
      You must login to download files.