No. Epic Mountains Rewards are only valid at Vail Resorts owned and operated resorts.
Vail Resorts owned and operated resorts include Vail, Beaver Creek, Breckenridge, Keystone and Crested Butte in Colorado; Park City in Utah; Heavenly, Northstar and Kirkwood in the Lake Tahoe area of California and Nevada; Whistler Blackcomb in British Columbia, Canada; Stowe and Okemo in Vermont; Mt. Sunapee in New Hampshire, Stevens Pass in Washington; Wilmot Mountain in Wisconsin; Afton Alps in Minnesota; Mt. Brighton in Michigan; Hunter Mountain in New York; Attitash Mountain, Crotched Mountain and Wildcat Mountain in New Hampshire; Mount Snow in Vermont; Seven Springs, Liberty Mountain Resort, Roundtop Mountain Resort, Whitetail Resort, Jack Frost, Big Boulder, Hidden Valley, and Laurel Mountain Ski Area in Pennsylvania; Boston Mills, Brandywine, and Mad River Mountain in Ohio; Hidden Valley and Snow Creek in Missouri; Paoli Peaks in Indiana and Alpine Valley in Ohio; and Falls Creek, Hotham and Perisher in Australia.