re: Fishing - Western Montana

I'd suggest posting on the Outdoor board. Not sure how familiar you are with fly fishing which is what I assume you are looking to do, but I'd highly recommend a full float trip if you've never done one. Full days are usually not much more than a half day as far as price. But the float trip over just wading you will cover way more ground and its an experience in itself just seeing so much pretty country.

I don't have any specific recommendations at all. There likely is not a lot of options though, just google whatever town you are in and fly fishing shops/ guides. You'll likely only have 3-5 options as far as companies at the most.

ETA: I'm not sure how Montana is or exactly how it works, but some rivers there have permits and some guides don't have the permits to fish everywhere. So its best to talk to a fly shop about where to fish, then find a guide that fishes that spot. Because you may find a guide that doesn't have the permits to fish what may be the best area for the time being.