United
States

Coast
Pilot

Great Lakes:

Lakes Ontario, Erie,
Huron, Michigan, and
Superior and

St. Lawrence River
Twenty-first Edition

National Oceanic and Atmospheric Administration (NOAA)
Dr. John A. Knauss, Under Secretary of Commerce for Oceans

and Atmosphere, and Administrator, NOAA

National Ocean Service

Virginia K. Tippie, Assistant Administrator for Ocean Services
and Coastal Zone Management

Washington, D.C.: 1991

For sale by the National Ocean Service and its sales agents.

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