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travel / great places / canadian snapshots / northern ontario

Snapshots
Northern Ontario

Geography and Geology

Approximately three billion years ago, the foundation upon which most of Northern Ontario sits was formed. Known as the Canadian Shield, it has some of the oldest exposed Precambrian rock on the planet. The Northern Ontario portion of the shield is composed mostly of hills of ancient crystalline rock measuring 30 metres. The dramatic rocky landscape was moulded and smoothed by glaciers that also gouged out the thousands of lakes that dot Northern Ontario.


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