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      This is a small system of trails that are tightly wound to make the most of a power utility company lot. Nice quick after-work destination. It takes 1-2 hours to ride everything.
      Primary Trail Type: Cross-Country
      eBikes Allowed: Yes
      AKA: Towers of Power
      Parking google parking directions plan a road trip here
      Access Info:
      Most people park at the adjacent Philip Arnold Park and ride a few hundred yards up the road to access the trails.

      Trail info last updated

      Activities Click to view
      Region Details
      • 6
      • 3
      • 5
      • 1

      Region Status
      Caution as of Jul 20, 2026
      Local Trail Association

      Stats

      Avg Trail Rating
      Trails (view details)
      15
      Trails Mountain Bike
      15
      Trails E-Bike
      15
      Trails Gravel Bike
      6
      Trails Adaptive Bike
      6
      Trails Hike
      11
      Trails Trail Running
      11
      Total Distance
      7 miles
      Total Descent
      766 ft
      Total Vertical
      141 ft
      Highest Trailhead
      453 ft
      Reports
      402
      Photos
      90
      Completed Counter
      6,237

      Popular Tapeworm Mountain Biking Trails

      • 100 ★ 4.5 • 1 mile • 110 ft • 817 •
      Super fun flowy trail with lots of undulating ups and down. Built within a tight space and engineered quite remarkably. Lots of fun wooden features to play on, a couple raised bridges, a medium size drop and a really cool teeter totter...
      • 95 ★ 4.0 • 4,357 ft • 84 ft • 685 •
      Tightly wound in a small space, featuring lots of ups and downs and tricky features. This is Silkworm's less flowy brother with some one-of-a-kind wood features scattered throughout.
      • 95 ★ 3.6 • 2 miles • 197 ft • 644 •
      The longest and oldest trail in the system. Old-school technical singletrack with lots of tight, rooty turns and punchy climbs. Lower on the hill there are numerous wooden features that help to tame the winter mud. Keep an eye out for...
      • 85 ★ 3.8 • 1,746 ft • 16 ft • 458 •
      Dirt jump slalom course with tons of (optional) doubles, rollers, and -you guessed it- berms. Lower section is often sessioned by itself as a "downhill pump track". Very fast and flowy, more for the experienced rider.
      • 95 ★ 5.0 • 548 ft • 0 ft • 327 •
      Two way connector trail between Parasite/Silkworm and Tapeworm.
      • 90 ★ 2.8 • 1,467 ft • 39 ft • 240 •
      Twisty singletrack with a few berms and optional doubles. No wood features. Will get a full overhaul in fall 2020!
      • 90 ★ 2.0 • 1,985 ft • 23 ft • 170 •
      This trail used to be longer, but the portion that ran through the blackberries was reclaimed by nature. This forested section remains.
      • 80 ★ 0.0 • 676 ft • 0 ft • 140 •
      This short trail connects the Crop Circles Loop to an access road above the Tapeworm Loop. It descends 22 feet.

      Recent Ride Log Activity in Region

      Today

      • 2 rides

      Yesterday

      • 1 rides
      Past Week
      • 14 rides

      Tapeworm Mountain Bike Routes

      ★ 3.0 • 7 miles • 681 ft • 36 • Race •
      This is the proposed Tapeworm Timetrail course for 2023.
      • 6 miles • 474 ft • 12 •
      • 2 miles • 185 ft • 5 •
      • 2 miles • 190 ft • 7 •
      • 7 miles • 484 ft • 21 •
      • 8 miles • 679 ft • 30 •

      Photos of Tapeworm Mountain Bike

      mtb
      61 |
      Nov 8, 2021 @ 10:41pm
      Nov 8, 2021
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      98 |
      Nov 8, 2021 @ 10:40pm
      Nov 8, 2021
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      67 |
      Nov 8, 2021 @ 10:40pm
      Nov 8, 2021
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      130 |
      Jul 15, 2021 @ 7:22am
      Jul 15, 2021
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      134 |
      Jul 15, 2021 @ 7:22am
      Jul 15, 2021
      mtb
      275 |
      Oct 31, 2020 @ 9:55am
      Oct 31, 2020
      mtb
      288 |
      Oct 31, 2020 @ 9:55am
      Oct 31, 2020
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      224 |
      Oct 31, 2020 @ 9:55am
      Oct 31, 2020
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      228 |
      Oct 31, 2020 @ 9:55am
      Oct 31, 2020
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      215 |
      Oct 31, 2020 @ 9:55am
      Oct 31, 2020
      mtb
      177 |
      Oct 31, 2020 @ 9:55am
      Oct 31, 2020
      mtb
      191 |
      Oct 31, 2020 @ 9:55am
      Oct 31, 2020

      Videos of Tapeworm Mountain Bike

      Drop fail
      mtb
      trail: Silkworm
      0:12 | | Dec 14, 2020
      New jump line is pure fun
      mtb
      trail: Quarantine
      0:24 | 726 | Jul 25, 2020
      Little drop on Parasite
      mtb
      trail: Parasite
      0:06 | 156 | Nov 7, 2018
      Krispy Kreme Sponsor Me
      mtb
      trail: Bermsled
      3:05 | 1048 | Mar 28, 2018
      Bermsled Followcam
      mtb
      trail: Bermsled
      0:30 | 1387 | Mar 3, 2018
      GHY bikes Bermsled Halloween race 2015
      mtb
      trail: Bermsled
      3:06 | 452 | Nov 2, 2015
      Bermsled March 2015
      mtb
      trail: Bermsled
      0:31 | 426 | Mar 21, 2015
      Bermsled Halloween Race 2014
      mtb
      trail: Bermsled
      4:26 | 619 | Nov 12, 2014

      Recent Trail Reports

      Activity Feed

      usernameactiontypetitledate
      evansalexeicommenttrailactivity #106338554
      Oct 21, 2026 @ 1:25pm
      Oct 21, 2026
      evansalexeivotetrailactivity #106338417
      Oct 21, 2026 @ 1:23pm
      Oct 21, 2026
      MackenzieBr1zSVwishlistregionactivity #104401901
      Sep 22, 2026 @ 10:56pm
      Sep 22, 2026
      kpowerswishlistregionactivity #99991971
      Jul 25, 2026 @ 11:54am
      Jul 25, 2026
      LivFoxdifficultyvotetrailactivity #99633005
      Jul 20, 2026 @ 2:13pm
      Jul 20, 2026

      Recent Comments

      usernametypetitlecommentdate
      evansalexeitrailBermsledMost of the big jumps are pretty grassy. I'm...
      Oct 21, 2026 @ 1:25pm
      Oct 21, 2026
      KewzytrailBermsledNever been to this park. Can anyone verify if...
      Mar 28, 2026 @ 3:14pm
      Mar 28, 2026
      MbrowningtrailTapewormSilkworm, Bermsled and Quarantine are the most...
      Feb 2, 2026 @ 7:20am
      Feb 2, 2026
      RicravtrailTapewormCity of renton and evergreen mtb alliance are...
      Jul 23, 2025 @ 9:42pm
      Jul 23, 2025
      AaronKQwpp5trailTapewormAwesome trail. I'd rather have a real one though
      Jun 10, 2025 @ 6:41pm
      Jun 10, 2025

      Nearby Areas

      namedistance
      May Creek Park3.8 km
      Spring Lake/Lake Desire 12 5 14.9 km
      Pioneer Park 325.1 km
      North SeaTac Park 40 4 25.3 km
      Bellevue Open Space 26.1 km

      Activity Type Stats

      activitytypetrailsdistancedescentdescent distancetotal verticalratingglobal rankstate rankphotosreportsroutesactivity logs
      Mountain Bike157 miles768 ft2 miles141 ft
      #3,043#659040216,842
      E-Bike157 miles768 ft2 miles141 ft
      #6,892#112362197
      Gravel Bike62 miles141 ft3,957 ft141 ft
      #1,226#656195
      Adaptive Bike62 miles141 ft3,957 ft141 ft
      #1,230#65950
      Hike116 miles633 ft2 miles141 ft
      #14,136#29538454
      Trail Running116 miles633 ft2 miles141 ft
      #13,339#29038465

      Frequently Asked Questions

      ▼ What are the highest rated mountain biking trails in Tapeworm?
      The highest rated mountain biking trails in Tapeworm are: View all mountain biking trails sorted by rating.
      ▼ Where can I park to ride in Tapeworm?
      There are 1 parking locations listed in Tapeworm. The most popular parking spots are:
      ▼ What is the longest trail in Tapeworm?
      The longest trail in Tapeworm is Tapeworm at 1.9 miles. View all trails sorted by distance.
      ▼ How many trails are in Tapeworm?
      Tapeworm has a total of 15 trails. Browse top mountain biking trails in Tapeworm to find detailed information including difficulty ratings, distances, and trail conditions.
      ▼ Which trail has the most elevation gain in Tapeworm?
      The trail with the most elevation gain in Tapeworm is Tapeworm with 197 ft of elevation gain. View all trails sorted by elevation gain.
      ▼ Which trail has the most elevation descent in Tapeworm?
      The trail with the most elevation descent in Tapeworm is Tapeworm with 199 ft of elevation descent. View all trails sorted by elevation descent.
      ▼ What activities are most popular in Tapeworm?
      Tapeworm supports the following activities: Mountain Biking, E-Biking, Hiking, Trail Running.
      ▼ What are the steepest mountain biking trails in Tapeworm?
      The steepest mountain biking trail in Tapeworm is GloWorm with an average grade of 0.3%. View all trails sorted by grade.
      ▼ Are the trails open in Tapeworm?
      The overall region status for Tapeworm is Minor Issue / Yellow. Out of 14 trails:
      • Clear / Green: 10
      • Minor Issue / Yellow: 3
      • Significant Issue / Amber: 1
      View the full trail status page for the latest updates.
      ▼ Can I ride an ebike in Tapeworm?
      Yes, Tapeworm supports e-bike riding. There are 15 trails in Tapeworm that allow e-bikes. Check the e-bike trails listing for specific trail access details and any local regulations.
      ▼ What are the most popular Strava Segments in Tapeworm?
      The most popular Strava segments in Tapeworm are:
      • Tapeworm Current (820 athletes)
      • Silkworm '13 (776 athletes)
      • Bermsled Plus Power Up (736 athletes)
      View all Strava segments in Tapeworm.
      ▼ What are some popular technical trail features in Tapeworm?
      There are 33 technical trail features (TTFs) in Tapeworm. Some popular features include: View all technical trail features in Tapeworm.
      ▼ What are the most popular mountain biking trails in Tapeworm?
      ▼ What are the best beginner ride trails in Tapeworm?
      The best beginner mountain biking trails in Tapeworm are: View all beginner mountain biking trails in Tapeworm.
      • By brenthillierTF Pro NSMBA TRAILFORKS & contributors
      • Admins: EMBA-C2S
      • #8146 - 16,303 views

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