Fought's Mill - Credit: Wikimedia Commons
Fought's Mill was a gristmill built by Jacob Fought in 1771 in West Buffalo Township, Union County, Pennsylvania. The mill operated on water received from two dams that had been built on Buffalo Creek. This water power was used to unload the grain from the wagons and raise it to the first and second floor levels by rope and pulley. The grain was then ground between two millstones, which were ridged on the joining sides, to make flour, cornmeal, and feed for livestock. During extremely cold conditions, the mill would be operated during the day and night, to prevent the water from freezing. The mill remained powered by water until the 9th owner, who bought the mill in 1925, converted it to diesel power. Read more on Wikipedia
Source: en.wikipedia.org