Simple bouguer gravity map of Minnesota, Hibbing sheet /

Bibliographic Details
Main Author: Ikola, R. J. (Rodney J.)
Format: Map
Language:English
Published: Minneapolis : Minnesota Geological Survey, University of Minnesota : Published in cooperation with Minnesota Dept. of Iron Range Resources and Rehabilitation, 1968.
Series:Miscellaneous map series ; M-3.
Subjects:
Description
Item Description:Gravity contour intervals 2 milligal.
"Contour interval 50 feet."
"Base by U.S. Geological Survey, 1954."
"Compiled in 1967."
Includes location map.
Cartographic material.
Physical Description:1 map ; 45 x 61 cm. folded in envelope 30 x 24 cm.