DULUTH — At more than 300 miles in length, a celebration in style was in order for the Superior Hiking Trail. The trail turned 40 on Saturday and what better way to honor it than to get out on it? Those who oversee the trail encouraged people to spend the day using the trail for a community-wide hike and then to attend public birthday parties held in cities along the trail.
Participants could go solo or with a crew, pick a trailhead and just en…