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Drain The Great Lakes of America | Secrets of the Freshwater Oceans
Will We Drain The Great Lakes? - Naked Science - Great Lakes
The Mysteries Of North America's Great Lakes | Naked Science | Spark
Think you know the Great Lakes? Here are some little-known facts
Drain - Great Lakes Documentary Trailer
On the Shores of the Great Lakes
What Lives At The Bottom of Lake Michigan?
North America's Forgotten Great Lakes
17 Interesting Facts About Lake Erie
Why One of USA's Biggest Lakes Is Reappearing Centuries After Disappearing
Lake Michigan: The Deadliest Great Lake
7 Interesting Facts About Lake Superior