When the Great Lakes were lower | Science News

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When the Great Lakes were lower

Early hunters once prowled now-submerged portions of Lake Huron, evidence suggests

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5:06pm, June 8, 2009

Sonar and video surveys of a long-flooded land bridge between Michigan and Ontario, Canada, reveal evidence of man-made structures that may have been used by hunters when water levels in the Great Lakes were much lower than they are today, researchers claim.

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