Keystone Resort is the largest ski resort in Summit County located in Keystone, Colorado. Keystone consists of three mountains named Dercum Mountain, North Peak, the Outback, and five Bowls (Independence, Ericsson, Bergman, North and South Bowls) for skiing at every level. The first three mountains mentioned connected by a series of ski lifts and gondolas. Collectively, the mountains form the largest operation in Colorado to offer night skiing, where several trails are lit by large light fixtures, and lift operation can run until late into the night.
Keystone is known also for its five-acre resurfaced skating lake (largest in North America), sleigh rides and many Zagat-rated four- and five-star restaurants. There are over 3,000 condos in Keystone, all within a short walk or free shuttle ride to one the two base areas called River Run (newest) and Mountain House (Original, less crowded).
In summer, Keystone also is a home for lift access mountain biking, biking parks, and hundreds of miles of single-track mountain biking.