From thedenverchannel.com:
- Arapahoe Basin: TBD date in June
- Aspen Highlands: Closed
- Aspen Mountain: April 24
- Beaver Creek: April 17
- Breckenridge: TBD date in May
- Buttermilk: Closed
- Chapman Hill Ski Area: Closed
- Cooper: April 17
- Copper Mountain: April 24
- Cranor Ski Hill: Closed
- Crested Butte: Closed
- Echo Mountain: April 17
- Eldora: April 17
- Granby Ranch: Closed
- Hesperus: Closed
- Howelsen Hill: Closed
- Kendall Mountain: TBA
- Keystone: April 17
- Lake City Ski Hill: Closed
- Lee’s Ski Hill: Closed
- Loveland: TBD date in early May
- Monarch: April 17
- Powderhorn: Closed
- Purgatory: April 17
- Silverton: April 17
- Snowmass: April 17
- Steamboat: Closed
- Sunlight: Closed
- Telluride: Closed
- Winter Park: TBD date in mid-May
- Wolf Creek: April 17
- Vail: May 1