The St. John’s Mill is a 14th century water-driven mill located on Sint Jansgeleen in the town of Spaubeek. The mill was named after St. John’s Castle, a once glorious castle which was demolished during the second half of the 19th century. The mill is now considered to be a monument of high cultural and historic value. St. John’s Mill is now privately owned, and both the mill building and the neighbouring mill house are currently undergoing restoration work.