Map showing cumulative thickness of sandstone in the Swift Formation, 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 ; 82-4030.
Subjects:	Aquifers > Montana > Maps. Geology, Stratigraphic > Jurassic > Maps. Formations (Geology) > Montana > Maps. Aquifers. Geology, Stratigraphic. Jurassic Geologic Period. Montana. From 140 to 190 million years ago Maps.
Online Access:	https://purl.fdlp.gov/GPO/gpo135729

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