Aka Witmer’s Mill
| 1814 | Jacob H. Witmer |
| 1832 | Current mill built |
| 1888 | Hiram S. Young |
| 1902 | Destroyed by fire |
| 1902 | Rebuilt by Samuel Young |
| 1915 | B. K. Snyder |
| 1931 | Operations ceased |
| 2006 | Blue Rock Heritage Center |
The mill was refurbished in 2006 and is now the headquarters of the Blue Rock Heritage Center.
(https://www.bluerockheritage.org)
This mill is located at 2251 River Road, Washington Boro, PA.
| Built | 1832 |
| Structure | 2.5 Story Stone |
| Water Source | Witmer’s Run |
| Township | Manor |
| Type | Grist |
| Headrace | 1,300 feet |
| Tailrace | 25 Feet |
| Dam Height | 4 feet |
| Power | 1 Overshot |
| Capacity | 8 bbl / day |
