Plum Island Rear Range Lighthouse
Built in 1895. Automated in 1969 and remains an active navigational aids to this day. Closed to the public; no tours. However, Shoreline Charters (920/854-2606) operates a boat tour out of Gills Rock that goes past the lighthouse for viewing and photography, mid-May to mid-Oct.
Marks the straits between Washington Island and the northern tip of the Door County peninsula.
- Transportation Heritage