you may kwow yellow stone national park? big sky is in the same area.
9 hours drive from calgary.
4 hours drive from salt lake city.
4 hours drive from Jackson Hole (another famous ski resort) .
1.5 hours drive from city of Bozeman
before they installed the Tram, it's only a family friendly ski resort. lots of groomed runs and kid under 10 skiing for free. it's still very family friendly ski resort and looks like so many families enjoy skiing there and visit big sky every year.