Don’t be misled by those four stony faces above town; Keystone is fun and games — especially in the heart of summer. Enjoy scenic chairlifts, an Alpine slide, zip lines that span a mile, mini golf by a gold mine and helicopter tours of the faces and surrounding mountain peaks. Pan for gold in a real mine. Dip your toes in the cool waters of Battle Creek. Cool off in nearby Rushmore Cave. Watch a gun fight at the Red Garter Saloon. This is a mountain playground for families.