Magnetic declination in the United States - epoch 1980 /

Bibliographic Details
Main Author: Fabiano, Eugene B.
Corporate Authors: United States. National Oceanic and Atmospheric Administration, Geological Survey (U.S.)
Other Authors: Peddie, Norman W.
Format: Government Document Map
Language:English
Published: Reston, VA : Dept. of the Interior, U.S. Geological Survey, 1980.
Series:Miscellaneous investigations series (Geological Survey (U.S.)) ; map I-1283.
Subjects:
Description
Item Description:"Base from Coast and Geodetic Survey, U.S. Department of Commerce, 1965, revised 1970. The base was modified by the U.S.G.S. in 1980."
"This map supersedes Map I-911, Magnetic declination of the United States-epoch 1975.0 ... 1975."
Includes notes.
Alaska (scale 1:5,000,000) and Hawaii (scale 1:7,500,000) on verso.
Cartographic material.
Physical Description:1 map : color ; 64 x 95 cm.