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bottom chart Lake
A partial list follows. Erie Huron Michigan Ontario Superior. Retrieved from " https: They used snow shoes , birch bark canoes and conical or domed lodges. They may also be used by land-use planners, conservationists, oceanographers, marine geologists, and those interested in the coastal zone and the Outer Continental Shelf's OCS physical environment.
Commercial tug-and-barge traffic on these waterways is heavy. Friede Publications. Mighty Mac.