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Ski Cooper. Nine miles west of Leadville, Ski Cooper is one of those undiscovered boutique ski areas in the Rockies. It has 400 acres skiable via lift and another 2,400 acres of backcountry powder accessible by snowcat. The 26 groomed runs are perfect for beginning or intermediate skiers. U.S. 24, Leadville, CO, 80461. 719/486–3684 or 800/707–6114. www.skicooper.com. Late Nov.–early Apr., daily 9–4.