Magnetic horizontal intensity in the United States - Epoch 1975.0 /

Bibliographic Details
Main Author:	Fabiano, Eugene B.
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Jones, W. J. (William Jerome), 1934-
Format:	Government Document Map
Language:	English
Published:	Reston, Va. : The Survey, 1976.
Series:	Miscellaneous investigations series ; map I-913.
Subjects:	Geomagnetism > United States > Maps. Geomagnetism > Alaska > Maps. Geomagnetism > Hawaii > Maps.

Description
Item Description:	"Prepared in cooperation with the National Oceanic and Atmospheric Administration." "Editions prior to 1976 published as Chart 3077h by the Coast and Geodetic Survey, Environmental Science Services Administration, U.S. Dept. of Commerce." Cartographic material.
Physical Description:	3 maps on 1 sheet : both sides, color ; sheet 84 x 119 cm.