Lots of options. Go west to Canmore, Banff, Lake Louise, Golden, Emerald Lake, etc.
Go north to Jasper
Go south to Waterton (pretty dead this time of year though) or Fernie via Hwy 22.
Drumheller would be a good option as well. Writing on Stone Provincial Park is neat (although it might be pretty dead this time of year)
Don't go too far East. Saskatchewan sucks.