Coghlan Castle

Coghlan Castle is a building in Rolette County, North Dakota, near St. John, North Dakota. Occupied by Maurice Coghlan and his family until 1948, it is the only castle in North Dakota. The property remained relatively unknown until it was listed on the National Register of Historic Places on July 16, 2008, and is the third property to be listed as featured property of the week. It is of stone construction.