In article ,
says...
Are there any rivers left in Washington, Oregon, Idaho or Montana that
have only wild, native trout/steelhead (no non-native introductions or
hatchery fish), and where wild fish can be kept?

I've posted this question to a number of on-line forums. Apologies if
you've already read it elsewhere -- I wanted to tap into the largest
possible audience......

Oregon coastal streams south of about Lincoln City allow you to keep
wild cutthroat (2 8" if I remember correctly).

They closed all coastal streams maybe 8 years ago. Reopened those south
of Lincoln City about 2 years ago. Rumors have it the remainder will
be opened in a year or two.
- Ken