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A full-on downhill trail with loads of jumps.

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2,875' 876 m


1,276' 389 m


11' 3 m


1,605' 489 m



Avg Grade (7°)


Max Grade (15°)

Dogs Unknown

E-Bikes Unknown

Trails in the Yacolt Burn State Forest are generally open year round but require the use of a Discover Pass. The area and trails are remote and there is extremely poor cell service make sure your party is properly equipped.


To get started on Thrillium first head to the bottom of the trail where riders will find a small pull-out parking area (just west of the main lower trailhead). To get to the top there are two common approaches, either pedal up Road L1070 and the Cold Creek Connector Road or the arguably more popular shuttle.

Whichever option you take you'll end up at a nice new parking area with restroom at the top of the trail. Enter the trees past the outhouse till you reach the "difficult terrain" sign and the Thrillium placard suspended to the left. Get ready for the fast and exciting ride ahead.

Thrillium gives you a small warm up before settling in for high-speed berms accented with drops, kickers, doubles, and tables. Most everything is rollable in this section but if in doubt, scope it out. And although the berms are large, a scattering of stones across their surface can make for a loose ride. Especially the baby-head rocks before the first road crossing.

The next section opens with an optional drop off the road headed into a series of doubles. Pretty soon, the trail flattens out as you enter a rich forest. You'll need to keep your speed up if you want to keep clearing tabletops. Next up, a couple of optional hips and gaps keep things lively until the next road crossing.

Thrillium really takes off through this clear cut section by serving up tons of table tops and the occasional double. The section has the biggest hits (20-30' in length) early on and then they get more manageable towards the end. The trail itself is pretty wide, but the advanced nature of the jumps and the logs and stumps strewn about really make you want to land cleanly.

The next road crossing leads into two massive steep turns flying into high-speed step downs. Not to be undermined at the end, Thrillium keeps packing in more impressive tables and jumps right up to the finish.

Thrillium can be ridden on a trail bike, but a downhill bike will feel great with the exception of a flat section in the middle.


Shared By:

Eric Ashley

Trail Ratings

  4.6 from 17 votes


  4.6 from 17 votes
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in Washington


27 Views Last Month
14,920 Since Mar 5, 2015
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Kim Hardin pedals through a flatter section of Thrillium during the Cascadia Dirt Cup.
Aug 30, 2016 near Venersborg, WA
A perfect day of riding on Thrillium.
Aug 30, 2016 near Venersborg, WA
Clearing a 30 foot table on Thrillium.
Mar 5, 2015 near Venersborg, WA
Mar 20, 2015 near Venersborg, WA
Logan Wetzel sends the Godzilla step-down on Thrillium.
Aug 30, 2016 near Venersborg, WA
Eric Dukes flies past spring blooms on Thrillium during the Cascadia Dirt Cup.
Aug 30, 2016 near Venersborg, WA


Current Trail Conditions

Add Your Check-In


May 27, 2020
Alex Prak
Mar 21, 2020
Nick Giorgi
Sep 24, 2019
Josh Brooks
Jun 7, 2018
Rick Silva
Apr 21, 2018
Adrian Gallo
No snow on trail, some small puddles and slippy roots, otherwise riding great
Apr 3, 2016
Steven Basden
Nov 21, 2015
Jason Van Horn
Oct 25, 2015
Jim Butterfield
starting to rain, sections of open area were starting to puddle... and then it gets slippery. very rocky in sections.

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