Fort Knox State Historic Site711 Fort Knox RoadProspect, ME 04981 207-469-7719 www.maine.gov/... FunInNewEngland Rating: (0 votes) Status: Seasonal Dates: May 1 to October 30 Parking Fee: Yes Maine's largest historic fort and first granite fort; Built from 1844 to 1864; There is a self-guided trail Last updated 2014-09-06 Get map or directions from Google Maps, Yahoo Maps, Bing Maps, or Mapquest Rate it yourself Submit your own review |