National Trails Day, June 1, is a many-splendored thing, because the trails it celebrates cover such a vast spectrum. Trails are long and short, urban and rural, for taking a gentle stroll through the wilderness and for picking up the groceries. Trails have become as diverse and varied as the American people they serve. As America has changed over the decades, so too has the humble trail evolved into an important part of everyday life for millions of people. National Trails Day is the perfect moment...