Lowrey's Map of the City of Duluth. Included in the map: a key to city streets, the Corporate Limits of Duluth, the Lake Superior shoreline and the Duluth Harbor. Also indicated on the map are Duluth city parks including Chester Park, Enger Park, Wheeler Field, Fairmount Park, Fond Du Lac Park, Northland Country Club, Ridgeview Golf Course, and the Lester Park Golf Course.