Theodore Wirth: Loppet Trails in Golden Valley, Minnesota, offers 23 km of groomed cross-country ski trails for beginner, intermediate, and advanced skiers. The trails are located in Theodore Wirth Regional Park and are maintained by The Loppet Foundation. The park also features mountain bike and multi-use trails, as well as a trailhead building with equipment rental and lessons. The Loppet Foundation offers winter programs and events, and the park is open from 6:00 a.m. to 10:00 p.m.