Great Glen Trails is a for-profit organization that maintains a four-season network of scenic walking and hiking trails as well as amazing biking and xc skiing trails. They also put on several recreation related events throughout the year. Great Glen Trails is located the base of the Mount Washington Auto Road. Walkers and snowshoers are welcome to explore the trails free of charge, and bikers and skiers may purchase a pass at the main lodge area. Leashed dogs are welcome.