I believe that the only place planted with sea runs anymore is on the cowlitz. Cowlits aea runs are alsoa very very underfished fishery and would be a good destination.

If you'd rather go someplace and fish for natives i'd recommend heading to the lower columbia tribs below the cowlitz. but please don't use bait and remember if you do the first 5 count against your daily limit whether you keep them or not.