Flathead lake brewing a few miles down the road. Kalispell brewing co (never had any) great northern brewing in whitefish is pretty decent. Brix in kalispell for bottles. They just got 2 cs of BCBS
Kalispell Brewing was a surprise for me. A bit spendy but the beer was quite good. Was there in Sept.
I'll add Bonsai Brewing in Whitefish to the list (https://www.facebook.com/bonsaibrew), and if you're up for a 1+ hour drive to Eureka, there's HA Brewing (https://www.facebook.com/pages/HA-Brewing-Co/146353052221265)