Vacant Lot or Land for sale by owner in Cougar, WA 98616. Lot #123 is a cleared lot within 100 yards of the access area and docks of Swift Resevoir. This property sits in National Forest Land and is near all kinds of natural wonders. Mt. St. Helens, Lewis River Falls and the Ape Caves are all a short drive away. The property sits in the N ... more.