Bozeman is a little less than an hour away from big sky and moonlight basin. but check out bridger, it doesnt have a very good park but its got a lot of sick terrain and it gets a decent amount of snow. the people are real chill too. there are free shuttles to bridger from bozeman as well, but its a half hour drive tops if you drive yourself. I dont mountain bike, but a lot of my frineds there do and they seem to like the trails they ride on. Bozeman itself is a real sick town, the school was a little big for my taste though. check it out!