Map showing cumulative thickness of sandstone in the Lakota Formation and equivalent rocks, Montana /

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Bibliographic Details
Corporate author / creator:	Geological Survey (U.S.), cartographer.
Imprint:	Helena, Montana : Department of the Interior, United States Geological Survey, 1982. Denver, Colorado : Open-File Services Section, Western Distribution Branch, U.S. Geological Survey.
Description:	1 online resource (1 map).
Language:	English
Series:	Water-resources investigations report ; 82-4040 Water-resources investigations report ; 82-4040.
Subject:	Aquifers -- Montana -- Maps. Geology, Stratigraphic -- Cretaceous -- Maps. Aquifers. Cretaceous Geologic Period. Geology, Stratigraphic. Lakota Formation -- Maps. Montana. Maps.
Cartographic data:	Scale 1:1,000,000 (W 113°--W 104°/N 49°--N 45°)
Format:	E-Resource Map U.S. Federal Government Document
URL for this record:	http://pi.lib.uchicago.edu/1001/cat/bib/12284819

Hidden Bibliographic Details
Other authors / contributors:	Feltis, R. D. (Richard D.), 1930- author.
Notes:	Relief shown by contours and spot heights. Includes bibliographical references, text, and location map. Description based on online resource; title from PDF title page (USGS, viewed April 13, 2020).
Other form:	Print version: Feltis, R. D. Map showing cumulative thickness of sandstone in the Lakota Formation and equivalent rocks, Montana
GPO item no.:	0624-B-05 (online)
Govt.docs classification:	I 19.42/4:82-4040

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