We got a vote for Oregon, a couple for CO and the rest MT. Hum, I have been contemplating Durango area and West Yellowstone. Oregon would be nice also, I have spent a lot of time there non fishing about twenty years ago. This is not going to be easy. I also found out about a lake in AZ with grayling but it's a long way from anything else.
I'm going with my old mom, she is in to taking a road trip with me. She is not hard to please as long as we can find clean and comfortable lodging and our day trips can be done in spurts of two three hours of driving at a time.
I'm leaning towards MT.