The Colorado ski season is far from over but as we enter mid-March ski resorts have a pretty good idea of how long they will be able stay open as the we enter spring. Here is a tentative list of closing dates for Colorado ski resort with Breckenridge and Loveland sharing the current latest closures on May 11th. Again this list is subject to change date based on the weather conditions.
Arapahoe Basin: As long as possible
Aspen Mountain: April 20
Aspen Highlands: April 13
Beaver Creek Resort: April 13
Breckenridge Ski Resort: May 11
Buttermilk: April 6
Ski Copper: April 13
Copper Mountain: May 11
Crested Butte Mountain Resort: April 6
Echo Mountain: April 20
Eldora: April 20
Granby Ranch: March 31
Howelsen Hill Ski Area: March 30
Keystone Resort: April 6
Loveland Ski Area: May 11
Monarch Mountain: April 6
Powderhorn Mountain Resort: April 13
Purgatory Resort: April 13
Silverton: March 16
Snowmass: April 20
Steamboat: April 19-20
Sunlight Mountain Resort: April 6
Telluride Ski Resort: April 6
Vail Ski Resort: April 20
Winter Park Resort: April 27
Wolf Creek: April 5

images from Loveland Ski Area