Skiing Trail

Green Circles
Definition: Green Circles are the color and symbol used to mark beginner trails (the easiest trails to ski).
Examples: 26 percent of Killington Resort's ski trails are Green Circle trails.

Blue Square
Definition: Blue Squares are the color and symbol used to mark intermediate ski trails.
Examples: More than half of Aspen Highland's trails are marked Green Circle or Blue Square

Black Diamonds
Definition: Black Diamonds are the color and symbol used to mark advanced ski trails. Black Diamond ski trails are often difficult to ski and have advanced terrain.
Examples: The peak of Copper Mountain contains many Black Diamond ski trails.