The ride starts the upper Siouxon Trailhead just past the hairpin off road 5701. At 1.2 miles, you'll see the Huffman Peak trail come in from the left that you'll return on, 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/trail (Trail 130A) to the left. After a quarter mile, 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 miles. The first trail you get to is Wildcat Trail 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 Trail. Take that about 4 miles downhill 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 Siouxon Creek
trail. Take a right and its just a hard 1.2 miles back to the finish.