Fort Michilimackinac was an 18th-century French, and later British, fort and trading post at the Straits of Mackinac; it was built on the northern tip of the lower peninsula of the present-day state of Michigan in the United States. Built around 1715, and abandoned in 1783, it was located along the Straits, which connected Lake Huron and Lake Michigan of the Great Lakes of North America. Present-day Mackinaw City developed around the site of the fort, which has been designated as a National Historic Landmark. It is preserved as an open-air historical museum, with several reconstructed wooden buildings and palisade.