The Delta Mill erected in 1810, has been commemorated as a National Historic Site by the Historic Sites and Monuments Board of Canada. This stone mill is a remarkable example of mill architecture persisting from the times of Upper Canada.

Plaque Text
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.