Osher Map Library

U.S. Coast and Geodetic Survey

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Magnetic declination in California and Nevada, 1935

Magnetic declination in Arkansas : 1935

Magnetic declination in Delaware, Maryland, Virginia, West Virginia, Kentucky, and Tennessee

Magnetic declination in North Carolina in 1925

Comparative chart showing changes in the entrance to Beaufort Harbor, North Carolina

United States--east coast, Georgia, St. Simons Sound, Brunswick Harbor, and Turtle River

United States - east coast, Georgia, Altamaha Sound

United States--east coast, Georgia, Sapelo and Doboy sounds

United States East Coast- Maryland and Virginia, Chesapeake Bay Pocomoke and Tangier Sounds