Mount Rock Mill

The oldest part of this mill has been documented as the oldest standing mill in Lancaster County. John and William Gualt owned this mill in 1759. Another Gualt, whose first name is unknown, built the mill in 1729. The mill remained in the Gualt family until 1839 when John Robinson took ownership.

This mill is located on Koser Road, just off of Cambridge Road in Narvon, PA and is used for storage.