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County of Durham

Once part of the United Counties of Northumberland and Durham, it was superseded in 1973, along with part of Northumberland County, by the Regional Municipality of Durham

County of Durham

County of Durham
Map No. 21a - The Southern Part of the Province of Ontario- (Detail) Durham County
Province of Ontario. Department of Lands & Forests
RG 1-707 Ministry of Natural Resources topographic maps