Van Wyck-Lefferts Tide Mill
Van Wyck-Lefferts Tide Mill is a historic tide mill located at Lloyd Harbor in Suffolk County, New York. It was built about 1793 and is a -story, gable-roofed, timber-framed rectangular building little altered since the early 19th century. The property also includes the earthen mill dam with sluice gates.
It was added to the National Register of Historic Places in 1978.