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 Date: 2012-03-02 09:13:01Port authority Water Duluth Works Tonnage Great Lakes Geography of Canada Transport Duluth–Superior Duluth Minnesota Saint Lawrence Seaway |
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Date: 2012-03-02 09:13:01Port authority Water Duluth Works Tonnage Great Lakes Geography of Canada Transport Duluth–Superior Duluth Minnesota Saint Lawrence Seaway |
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U.S Department of Transportation Office of Public Affairs 1200 New Jersey Ave., S.E. Washington, DC[removed]www.dot.gov/affairs/briefing.htm