Introduction iThe Present Great Lakes Drainage Basin 1Overview of the Present Geographic Region 2 – 3The Course of the Present Niagara River 4 – 5Glaciers and their Moraines 6 – 7The Five Sections of the Niagara Gorge 8 Section 1: Lewiston Branch Gorge 9 – 10 Section 2: Old Narrow Gorge 11 – 12 Section 3: Lower Great Gorge 13 Lake Tonawanda 14 – 15 Niagara Glen 16 – 22 St. David’s River 23 Whirlpool Reversal 24 – 26 Lake Erie Water Levels 27 &nbs
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