I lived in "the Butte" for 15 years and don't remember any ham operators in town then. I would have likely noticed, because Dad was getting himself licensed and his shack up & running (back in the midwest) while I was ski bumming.
But that's been 15 years ago, too. Ah, who am I kidding...closer to 20, now. At any rate, the mountains in the area are rugged and I'd have to agree with the poster above who said transmitting would likely be little better than line-of-sight.
Hope you get your answer...
Regards.
Bailagent100