2 miles
326 ft
-326 ft
Avg time

Tapeworm Details

  • Riding area
    Renton, Washington
  • Difficulty rating
  • Trail type
  • Bike type
    AM, XC
  • Trail Usage
    Biking Primary
  • Direction
    Downhill Primary
  • Climb Difficulty
  • Physical rating
  • Season
  • TTFs on trail
    A-Frame, Bridge, Drop, Skinny, Teeter Totter, Wallride
  • Ride in rain
  • Global Ranking

Skill builder ride, nice quick after-work destination. It takes 1-2 hours to ride everything. This is a small system of trails that are tightly wound to make the most of a power utility company lot. There are now six trails: Crop Circles (only 1/2 can be ridden), The Tapeworm, Parasite, Mr. DNA, The Silkworm and BermSled. The CycoActive map is out of date and currently only lists a few of the trails, but it will get you started in the right direction. This is a trashy section of young deciduous trees, don't expect nice forest (this area is great night riding, just be cautious of low hanging branches).

+Bermsled: Flowy downhill with berms and jumps
+Mr. DNA: Technical with roots and rocks
+Parasite: Technical with sharp turns, roots, and log piles, many short steep ups and downs
+Tapeworm: Technical with structures, roots, drops, short uphills and log piles.
+Cropcircles: Maze-Like ride
+Silkworm: Flowy XC with optional drops, structures, and berms
+Main Path: Fire road/singletrack, easy, not hard features

Access Info

Most people park at the adjacent Philip Arnold Park and ride a few hundred yards up the road to access the trails.

From Seattle, take I-5 South to I-405 North. Take exit #2 to SR-167 North. As soon as you've gone under the freeway, turn RIGHT onto S Grady Way. This soon turns into Main Ave S. At a traffic light, take a RIGHT onto S 4th St which will go uphill. At the first intersection, bear soft right into Cedar Ave S. Go about 0.4mi, take the first LEFT onto S. 7th St going steep uphill. Go straight to the 4-way stop. Go straight, and before the gate turn right into the parking lot.

To get to the trails, bike up the gated road a bit. You'll see entries on the right; take the one just past the jeep road as one way in. The alternative is to take the first entrance as you crest the top of the road from the Philip Arnold parking lot. Once you're on the trail, the left fork takes you to the main entrance area, and the right fork to the Parasite entrances.

Local Trail Association
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More Stats for Tapeworm mountain bike trail
  • Altitude change
    -0 ft
  • Altitude min
    335 ft
  • Altitude max
    414 ft
  • Altitude start
    402 ft
  • Altitude end
    402 ft
  • Grade max
  • Grade min
  • Distance climb
    3,414 ft
  • Distance down
    3,523 ft
  • Distance flat
    1,503 ft
  • Avg time
  • Avg reverse time
  • view trail stats
on Oct 7, 2017
Avg: 4.35 (6 votes)

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Layers winter
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Trail Style
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Directions to tapeworm trailhead (47.468330, -122.196460)
update trails status or condition

Tapeworm Trail Reports


more »
28 |
Apr 29, 2017 @ 9:48pm
Apr 29, 2017
Tapeworm, Renton
157 |
Sep 30, 2015 @ 1:28pm
Sep 30, 2015
Tapeworm, Renton
135 |
Sep 30, 2015 @ 1:28pm
Sep 30, 2015
Tapeworm, Renton
235 |
Aug 16, 2014 @ 8:59pm
Aug 16, 2014
| 2 comments Tapeworm, Seattle

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