Whitlocks Mill Light
This is the northernmost light in the United States. In 1892 a lantern was displayed from a tree on the American side of the St. Croix River near Calais, but complaints led to the construction of the lighthouse. The present keeper's house was also built in 1910.
The lighthouse remains an active aid to naviation and is maintained by the St. Croix Historical Society. The lighthouse is located about three miles east of Calais on Route 1. The tower is accessible to the public via a dirt road off Route 1, but be sure to respect the privacy of the owners of the keeper's house.
Location: St. Croix River, Calais
Present light built 1920