Blake River Megacaldera Complex

The Blake River Megacaldera Complex is a giant caldera cluster that spans across the Ontario-Quebec border in Canada. It is considered to be a supervolcano because of its great size (3,000 km2) and its numerous dikes and vents. The cluster is about 2700 million year old.  

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Category:Volcanoes of Canada
Category:VEI-8 volcanoes