Map showing lines of equal magnetic declination as determined by the Coast
Survey in 1875.
Image ID: cgs00122, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Photo Date: 1935 Ca.
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
NOAA Central Library
| NOAA Disclaimer
April 30, 2013