Earth_Magnetic_Field_Declination_from_1590_to_1990.gif

Summary

Description Earth Magnetic Field Declination from 1590 to 1990
Source https://www.usgs.gov/media/images/declination
Author U.S. Geological Survey (USGS) http://www.usgs.gov/
Permission
( Reusing this file ) 		Public Domain

Licensing

Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey , an agency of the United States Department of the Interior . For more information, see the official USGS copyright policy .

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