I actually picked these fish up about a 2 hours drive NW from Missoula in a little town called St. Regis. It is on the way if you are heading East on 90 towards Missoula. THe town is usually overlooked, but the people are extremely friendly, and the fishing isn't as good as it is in Missoula, but its all Heaven to me anyway. We were going to go to Missoula (because of all the options in case the run off started, i.e The Bitteroot, Rock Creek, or the Clark Fork). So to answer your question finally, I caught it on a drift from the St. Regis boat launch to the 14 mile boat launch.
ah that takes me back. have not been east for a couple years now. CH15, you ever fish "fish creek" about 20 miles east of superior? we camp there every year and i have gotten some 2-" cutts/bows outa there. biggest was about 23. fun little stream