For cross-country skiers, the hamlet of North River is probably best known for Garnet Hill resort, which offers dozens of miles of lovely, groomed cross-country trails. But surrounding the private facility is some of the best intermediate skiing in the park. It’s a place I was first introduced to in the late 1990s, and I come back every winter when snow conditions permit. To ski these trails, you’ll probably want heavy-duty boots and skis with metal edges for better turning and speed control.