In Derby Line the international boundary runs through a library and down the middle of a street, and October turns the whole hillside above it copper and rust. The Black Diamond Landscaping Company mows and tends the properties along there and back through Derby Center — cutting, edging, and hauling off whatever the maples drop. Frost arrives early this close to the border, so the last mow of the year is a considered decision. Beds get cleared, lawns get their final pass, and the yards go into winter tidy. Lawn care in Derby, Derby Line and the towns nearby.