Well being I grew up in Renton and learned how to steelhead & trout fish on the "CEDAR river and now reside in the upper reaches of Hobart,Wa right next to the cedar river water shed,and after rereading all the previous posts I'm gonna say that it is the upper stretch of the cedar river above landsburg and below chester morris lake.Good luck,
STRIKE ZONE

"UPPER CEDAR RIVER ABOVE LANDSBURG"