Old Stone Mill
The first mill on this site was built about 1796 by Abel Stevens, a loyalist and early industrialist from Vermont. After 1800 the property passed to a member of a prominent local family, William Jones, who by 1810 had constructed the present stone mill. One of the oldest surviving mills in Ontario, it is a fine example of early Canadian architecture and a reminder of the pioneer industrial development of eastern Ontario.
Plaque via Alan L. Brown's site Ontario Plaques. Full page here.