Aeromagnetic map of Montana /

Bibliographic Details
Main Author:	Zietz, Isidore, 1919-
Other Authors:	Gilbert, Francis P., Snyder, Stephen L.
Format:	Map
Language:	English
Published:	Reston, Va. : Geological Survey, 1980.
Series:	Geophysical investigations (Geological Survey (U.S.)) ; map GP-935.

Description
Item Description:	Cartographic material.
Physical Description:	1 map ; 192 x 113 cm. on 2 sheets.