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Siouxon/Huffman Peak Loop


Flowy singletrack with beautiful waterfalls followed by a brutally hard climb and incredible vistas.

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4,067' 1,240 m


1,015' 309 m


4,411' 1,344 m


4,411' 1,344 m



Avg Grade (5°)


Max Grade (22°)

Dogs Off-leash

E-Bikes Unknown

Generally not available Nov-May due to snow.


Siouxon Creek Trail is one of the best trails for mountain biking in the northwest. It has incredible flowy singletrack, ripping descents, challenging rocky areas, creek crossings, and some of the most beautiful waterfalls and clear pools around, period. Adding in the climb to Siouxon and Huffman Peaks makes this brutally hard, but it adds incredible views of Mt St Helens, Mt. Rainier, Mt. Adams, and Mt. Hood and also gives riders a killer 7.0 mile descent.


The ride starts at the upper Siouxon Trailhead just past the hairpin off road 5701. At 1.2 miles, you'll see the Huffman Peak #129 come in from the left (part of the return leg), but continue straight on Siouxon Trail. At 3.2 miles, you'll come to the official Siouxon Trailhead where all the hikers start from. If you're going to see any hikers its going to be in the next 4.2 miles, so use caution and be very courteous.

At 7.4 miles, there is a bridge to the left that crosses Siouxon Creek. Take the bridge to the left to start up Chinook Creek #130A. After 0.25 miles, the trail drops down to the creek at Chinook Falls. There is a log you can cross on that takes you directly to the trail on the other side.

Continue past the creek a quarter mile to a trail intersection at mile 7.9. Make a sharp right at the trail intersection to stay on Trail #130A. This is where the climbing begins. At mile 11, you intersect with road 6403. Take a left on the road and it almost immediately turns back into trail and begins climbing towards Siouxon Peak.

Once youve reached Siouxon Peak at mile 13.3, the trail is mostly downhill until you get to Siouxon Creek. It drops 3,000 over the next 7.0 miles. You'll pass the top of Wildcat #156, that goes to the left at around mile 14.5. Do not take this as it will take you back down close to Chinook Falls. The next trail intersection you get to is at mile 16.1 and you want to go left to stay on the Huffman Peak #129. Keep descending for about 4.0 miles until you get to Siouxon Creek.

Cross the creek to the trail on the other side. Take the trail about up 0.3 mile to Lower Siouxon #130D, where a turn to the right leads to the final 1.2 miles back to the finish.


Shared By:

Mike Sheppard

Trail Ratings

  3.9 from 15 votes


in Siouxon Area


  3.9 from 15 votes
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in Siouxon Area


in Washington


12 Views Last Month
10,708 Since Nov 14, 2018



Mt Adams at mile 13.3
May 22, 2015 near Amboy, WA
Mt St Helens and Mt Rainier at mile 13.3
May 22, 2015 near Amboy, WA
Bridge over Horseshoe Creek falls at mile 4.9
May 22, 2015 near Amboy, WA
Pretty sure this is Chinook Falls
May 15, 2019 near Amboy, WA
Chinook Falls - take a left over the second bridge and in about 0.25 miles is this gem.
Sep 6, 2017 near Amboy, WA
Chinook Falls
May 22, 2015 near Amboy, WA


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Aug 22, 2021
Alisa Wise
Do NOT ride this route! We should have read the last comment before heading out! DANGEROUS loop due to fire damage and downed trees! Windy = death 24mi — 15h 00m
Aug 11, 2019
Lunsford Aspen
The climb is steep and sustained, but most of it can be climbed on the bike if you don't get overwhelmed. — 5h 00m
Jul 14, 2019
Michael Small
4 hours of pushing your bike...some nice downhill sections and epic views. 20mi
Jul 12, 2019
Sep 15, 2018
Konstantin Alemasov
Jun 17, 2018
Richard Fitzgerald
"The waiting is the hardest part." 24mi
Aug 26, 2016
Ryan Stewart
Jun 26, 2016
David Stephenson
Bring your climbing (and hiking) legs. Unless you're a complete monster, plan on bit of hiking. Awesome ride either way. — 5h 30m