Ur from Montana too so i know how you feel right now.  You can do wat everyone else does and skateboard OR you can go buy a freebord, which is pretty much a snowboard for the streets, check it out.  Another is something I made up, break of the tips of a crappy skateboard, get a crappy snowboard, setup a rail in your driveway on a slope, then after getting strapped into your snowboard, jump onto the skateboard, gain some speed, jump off the skateboard onto the rail and grind away.  It's dope