All American Birkebeiner coverage is brought to you through the generous support of SkiErg. CABLE, Wis. – Whether or not it’s your first time following or participating in the American Birkebeiner, a point-to-point race from Cable to Hayward in northern Wisconsin, here are few pieces of information to bring you up to speed on what’s happening at the 39th annual event. 1. The biggest one of all. The Birkie as the largest cross-country ski marathon...