Vail Resorts (Epic Pass) - owns Vail, Beaver Creek, Breckenridge, Keystone. Has marketing agreement with A-Basin.
Arapahoe Basin - Owned by Dundee Realty Resort Development, a subsidiary of Dundee Realty Management Corporation of Toronto, Canada.
Copper Mountain - owned by Powdr Corp (on Rocky Mountain Super Pass)
Aspen Skiing Company - Aspen, Snowmass, Buttermilk, Aspen Highlands (Aspen Classic Pass)
Steamboat - owned by Intrawest (on Rocky Mountain Super Pass Plus)
Winter Park Resort - operated by Intrawest. Owned by the City and County of Denver (on Rocky Mountain Super Pass)
Telluride - Owned by Telluride Ski & Golf Resort.
Eldora Mountain Resort - Mostly sits on private land. Owned by a private group. (on Rocky Mountain Super Pass Plus for 14/15 season).
Echo Mountain - Now a private ski race training area.
Loveland Ski Area - Owned by the Upham family of Texas.
Ski Granby Ranch - Owned by Marise Cipriani.
Powderhorn - Owned by Powderhorn Partners.
Ski Cooper -
Monarch Mountain -
Durango Mountain Resort -
Howelson Hill - Owned by the city of Steamboat Springs
Crested Butte -