Map showing altitude of the top of the Lakota Formation and equivalent rocks, Montana /

Bibliographic Details
Main Author:	Feltis, R. D. (Richard D.), 1930- (Author)
Corporate Author:	Geological Survey (U.S.) (Cartographer)
Format:	Government Document Map
Language:	English
Published:	Helena, Montana : Department of the Interior, United States Geological Survey, 1982.
Series:	Water-resources investigations report ; 82-4039.
Subjects:	Aquifers > Montana > Maps. Geology, Stratigraphic > Cretaceous > Maps. Lakota Formation > Maps. Aquifers. Cretaceous Geologic Period. Geology, Stratigraphic. Montana. From 65 to 140 million years ago Maps.
Online Access:	https://purl.fdlp.gov/GPO/gpo135709

Description
Item Description:	Relief shown by contours and spot heights. Contour intervals 500 and 1000 feet.
Physical Description:	1 online resource (1 map).
Bibliography:	Includes bibliographical references, text, and index map.