I've stayed here twice on trips between Missoula and Portland and I love this little gem of a park, right off the highway. There's a little stream to sit or wade, the sites have tall trees and lots of privacy. The camp host was super helpful and suggested some places to check out that I would not have known about otherwise. 

Was here once in October and once in September. It's FCFS and I got the same site both times. No hook-ups. Did not use the bathroom either visit.