The Old Mill

The Old Mill is a historic windmill located at 50 Prospect Street in Nantucket, Massachusetts. Built in 1746, it is the oldest functioning mill in the United States. The mill is owned and operated by the Nantucket Historical Association as a museum. It is a contributing property of the Nantucket Historic District. In 1992, it was also designated as a Historic Mechanical Engineering Landmark by the American Society of Mechanical Engineers.