The Old Mail Road ran from the junction with an extension of the Sunnidale Road near Duntroon, south of Collingwood, to Ravenna, Heathcote, Griersville, and then on to Meaford and Owen Sound. Because of its link with the Sunnidale Road, the Old Mail Road allowed pioneers to travel from Owen Sound to Barrie. Its usefulness came to an end when the Ontario, Simcoe and Huron Railway reached Collingwood in 1855. A short portion of the old road still exists between Heathcote and Griersville. It is a narrow unpaved lane that is not maintained in winter.