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Archivistische beschrijving
Ontario. Department of Mines With digital objects Map collection
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Geological Map of the Province of Ontario
Geological Map of the Province of Ontario
Minerals in northern Hastings County
Minerals in northern Hastings County
Map of Lake Township in Hastings County
Map of Lake Township in Hastings County
Map of Marmora Township in Hastings County
Map of Marmora Township in Hastings County