Summit County, Colorado is a wonderful place to visit, and one of the best little towns in the area is Dillon. This small town in the mountains has a year-round population of just over 1,000 people, but you’ll find plenty of things to do in Dillon, Colorado to keep you busy for a few days.It’s right in the middle of everything – not only the mountains themselves, but it’s also within short driving distance to Breckenridge, Frisco, Silverthorne, Arapahoe Basin, and Keystone, and it’s only a little over an hour from Denver. It’s immediately off I-70, offering easy access to visitors.