The Changing Shape of Ontario: a Guide to Boundaries, Names and Regional Governments - Page Banner

County of Ontario

Superseded in 1973, along with Durham County, by the Regional Municipality of Durham.

Map of the County Ontario

Click to see a larger version (914K)

County of Ontario

C. Tarling & Co., Map Mounters and Publishers,
94 Market Street, Toronto
[between 1940 and 1951]

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