Snoqualmie, S. Fork - 1. I-90 Exit 52 to Denny Creek Campground (Fall in the Wall) (WA)
Runnable waterfall at the put-in. Some run it but others put in downstream. Most everyone stops to view the falls and get the "cupdate," a small rock cup in the pool at the base of the falls used to assess flows. The river is low runnable when the top rim of the cups is exposed and it is just below the point where water would flow through the cup. The river is medium to medium high when water is flowing through the cup but not reaching the rim of the cup.