Definition: Summit County is the 19th most populous county in the state of Colorado. Home to four major ski resorts (Arapahoe Basin, Copper Mountain, Breckenridge Ski Resort and Keystone Resort), it is often referred to as Colorado's playground. In addition, Summit County borders Eagle County, home to the resorts Vail and Beaver Creek.
Pronunciation: [suhm-it koun-tee]
Examples:We're headed to Summit County to do some snowboarding this weekend.