I'll pitch in on this one. I and my wife spent a week up there in late
sept. a few years ago, maybe 3 or 4. After the fishermen and before
the skiers. Had the place all to ourselves practicly. There is a ski
lodge that will open up for ya and the prices are pretty reasonable.
Big living room, fireplace, kitchen, two bedrooms, the whole enchalada.
Big Sky Ski or something like that. Just south of that on the road to
yellowstone (from Bozeman), maybe 3-5 miles on the east side, there
is/was a flyshop owned by a somewhat young couple that took me under
their wings. $20.00 bought me the use of one of his rods, waders,
boots, vest, and flys, a one day licence and a ton of advice of where
to go for the day. Fished the Gallitin River and kicked some butt. If
memory serves me right, it was the stretch of water that was the back
drop for the film "River Runs Thru It". Might be just local hearsay
but that's not what I tell my friends! Bill in Va.