Magnetic declination in the United States - epoch 1980 /
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| Corporate Authors: | , |
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| Format: | Government Document Map |
| Language: | English |
| Published: |
Reston, VA :
Dept. of the Interior, U.S. Geological Survey,
1980.
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| Series: | Miscellaneous investigations series (Geological Survey (U.S.)) ;
map I-1283. |
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| 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. |
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| Physical Description: | 1 map : color ; 64 x 95 cm. |