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 Douglas (Canada) Fort Douglas was the Selkirk Settlement (Red River Colony) fort and the first fort associated with the Hudson's Bay Company near the confluence of the Red and Assiniboine rivers in today's city of Winnipeg. Named for Thomas Douglas, 5th Earl of Selkirk, founder of the Selkirk Settlement, the fort was built by Scottish and Irish settlers beginning in 1813. Completed in 1815, it was in the immediate vicinity (down river) of the North West Company establishment, Fort Gibraltar.