Aspen Snowmass Resort
The Aspen Snowmass Resort, located in Aspen, Colorado, consists of four mountains: Aspen Mountain: base 7,945 feet, summit 11,212 feet; Snowmass: base 8,103 feet, summit 12,510 feet; Aspen Highlands: base 8,040 feet, summit 11,675 feet; and Buttermilk: base 7,870 feet, summit 9,900 feet.
Vail Resorts, located next to Vail, Colorado, operates four major ski resorts in the area: Vail: base 8,120 feet; summit 11,570 feet; Beaver Creek: base 8,100 feet, summit 11,440 feet; Keystone: base 9,280 feet, summit 12,408 feet; and Breckenridge: base 9,600 feet, summit 12,998 feet.
Intrawest owns a number of ski resorts in the United States and Canada. In Colorado, they have three resorts: Steamboat: base 6,900 feet, summit 10,568 feet; Copper Mountain: base 9,712 feet, summit 12,313 feet; and Winter Park: base 9,000 feet, summit 10,700 feet.
The majority of ski resorts in Utah are located around Park City. The city has three major resorts: Park City Mountain Resort: base 6,900 feet, summit 10,000 feet; Deer Valley: base 6,570 feet, summit 9,570 feet; and The Canyons: base 6,800 feet, summit 9,900 feet.
When picking a ski resort to visit, consider the altitude of the mountain. Higher altitude resorts are more likely to cause altitude sickness. If you are unfamiliar with how your body reacts to altitude, it is better to start at a lower mountain and move to a higher mountain once you have acclimated.