Stillaguamish, S. Fork
2 - Mallardy Creek to Verlot (Middle)(Silly Stilly)

| Difficulty | III+ |
| Length | 8.4 mi |
| Avg Gradient | n/a |
| Gauge | Sf Stillaguamish River Near Granite Falls, Wa |
| Flow Rate as of 54 minutes | 3.54 ftbelow recommended |
| Reach Info Last Updated | January 12, 2026 |
Known to locals as the “Silly Stilly,” this section is a solid class III run with fairly continuous action and plenty of spots to practice technique. It’s an excellent choice for those making the jump to class III whitewater. It flows on winter rains and through early summer (October through July). The run responds quickly to rainfall in the range of levels of interest to boaters, particularly during the winter rainy season. Flow can change dramatically over the course of a day, and levels that look reasonable in the morning can be a very different story by afternoon, so pay close attention to gages and the forecast.
Depending on how far upstream you start, the run begins with class II whitewater. The rapids are not difficult, but the possibility of wood hazards demands attentive boat-handling skills throughout.
As you approach Wiley Creek (a small stream that enters from river right), the pace picks up with more challenging slalom-style boulder gardens. The real class III action arrives at Wiley Creek Rapid. You can recognize the entrance by the distinct S-bend, which ends in a large pool against the side of the road. This spot is easily recognized from the highway at mile 14.6 and can be scouted on your way to the put-in.
The river accelerates as it plunges through the boulder field and resistant bedrock of Wiley Creek Rapid. Although generally considered a straightforward class III+, those looking for more challenge can create their own slalom course through the rapid to spice things up. Once levels climb above 6 feet on the gauge, this rapid approaches class IV as more significant holes begin to form. A user-friendly playspot sits on river left at the end of the last drop. It’s a particularly welcoming spot for those building confidence and trying their first moves. A short distance downstream, the tea-colored water of Black Creek enters from the left, signaling the start of the next series of boulders and ledges at Black Creek Rapids.
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The Red Bridge Campaground is on the upstream side of the Red Bridge (Snohomish County Bridge 537) at Mountain Loop Highway mile 18.1. In the past a logjam was located near the entrance to the campground. You may need to carry boats to a spot downstream of the logs.

This put-in option at highway mile 16.8 has become more popular in recent years. Parking is available on the upstream river left side of the bridge across Boardman Creek. Put in under the bridge on river left and float out onto a side channel that joins the South Fork Stillaguamish River.

This is the big drop on the run. At moderate flows it is class III but it can push class IV at higher flows. It is traditionally scouted on the shuttle drive up at highway mile 14.6. There are a few different lines and your preferred line may change with the flows so take a look on the way up.

Although the gate to the campground is typically locked during the winter and spring paddling season, you will find good beach access near campsite site 8 (if the water is not too high). During the winter you can park just outside the campground gate at Mountain Loop Highway mile 11.3. If the campground is open you can park across the street from the Verlot Ranger Station. It is a short walk from the campground, across a footbridge, and down a short trail to the parking area.