Interior of BC, best pow skiing there is outside of Japan(debatable obviously). You can set up base camp in Nelson and visit Whitewater, Red, Ferie, Revelstoke(definetly a great time to see it before it gets busy) panorama and kicking horse. Tons of great resorts all within a road trippable region (depending on the time you have). But yeah, It is a great place for road trips. I don't recommend this area though if you won't have a car/can't rent one. Cause getting from resort to resort can be tough if you want to do more then one.
Heres a map of the area:
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