Banff sign, Alberta, CanadaA Canadian-Pacific train rolls along the Kootenay River in Banff Natl Park,A view of Mount Rundle reflecting in Vermillion Lakes in the foreground, Banff National Park, Alberta, CanadaDespite the thin ice warning people walk on a frozen Lake Louise in Banff Natl Park, Alberta, CanadaElk grazing while snowing in Banff National Park, Alberta, Canada