Within a state that already has a rowdy reputation, Butte [1] bears the sybaritic crown; in the Butte equation, bars are elemental. Remember that in Montana, you don’t have to drink alcohol to go out to bars; bars are what you do.
A night out on the town in Butte should include the infamous M & M [2] as well as the Silver Dollar (133 S. Main St.), Irish Times Pub (2 E. Galena), and Maloney’s (112 N. Main St.).
Links:
[1] http://www.moon.com/destinations/montana/butte-helena-and-southwestern-montana/butte
[2] http://www.moon.com/destinations/montana/butte-helena-and-southwestern-montana/butte/nightlife/the-m-m