Busti Mill, also known as the Old Mill, is a historic grist mill located at Busti in Chautauqua County, New York. It was built in 1839 and remained in operation until around 1959 or 1960. In the later years, the mill was rented out and used sporadically, and the exact closing date is undetermined. The town of Busti deeded the mill to the Busti Historical Society December 29, 1972.[3]