Snowmass: 3,010 acres; easiest - 7%, more difficult - 55%, most difficult - 18%, expert - 20%

Aspen Mountain: 673 acres; easiest - 0%, more difficult - 48%, most difficult - 26%, expert - 26%

Aspen Highlands: 790 acres; easiest - 18%, more difficult - 30%, most difficult - 16%, expert - 36%

Buttermilk: 427 acres; easiest - 35%, more difficult - 39%, most difficult - 26%, expert - 0%