This census-designated place first settled in 1623 is home to a defensive fortification built at the mouth of what river?
Fort McClary Fort McClary is a former defensive fortification of the United States military located along the southern coast of Maine at Kittery Point. Built at the mouth of the Piscataqua River, it was used primarily throughout the 19th century to protect approaches to the harbor of Portsmouth, New Hampshire, and the U.S. naval shipyard.
Fort Loyal Fort Loyal was a British settler refuge and colonial outpost built in 1678 at Falmouth (present-day Portland, Maine) in Casco Bay. It was destroyed in 1690 by Abenaki and French forces at the Battle of Fort Loyal. The fort was rebuilt in 1742 and renamed Falmouth Fort before King George's War and rearmed again in 1755 for the French and Indian War. The fort was rebuilt a final time in 1775 for the American Revolution.