Albany Pine Bush Preserve & Discovery Center Belleayre Mountain Big Boulder Ski Area Blue Mountain Resort- Palmerton, PA Bromley Mountain & Sun Mountain Adventure Park Campgaw Mountain Catamount Mountain Resort Gore Mountain Greek Peak Mountain Resort Hunter Mountain Ski Area and Resort Jack Frost Ski Resort, PA Jiminy Peak Mountain Resort Labrador Mountain Lapland Lake Nordic Vacation Center Magic Mountain McCauley Mountain Ski Resort Mount Snow Mountain Creek Resort, NJ National Park Service Oak Mountain Ski Resort Okemo Mountain Resort Pico Mountain Ski Resort PINERIDGE Cross Country Ski Area Plattekill Mountain Powder Ridge Mountain Park and Resort Shawnee Mountain Area, PA Ski Sundown Stowe Mountain Resort Stratton Mountain Ski Resort Thunder Ridge Ski Titus Mountain Family Ski Center Town of Yorktown Whiteface Mountain Willard Mountain Windham Mountain