Stratigraphy of mid-Cretaceous Blackleaf and lower part of the Frontier formations in parts of Beaverhead and Madison counties, Montana /

Bibliographic Details
Main Authors:	Dyman, T. S. (Author), Nichols, Douglas J. (Author)
Format:	Government Document eBook
Language:	English
Published:	[Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1988.
Series:	U.S. Geological Survey bulletin ; 1773.
Subjects:	Geology > Montana > Beaverhead County. Geology > Montana > Madison County. Geology, Stratigraphic > Cretaceous. Cretaceous Geologic Period. Geology. Geology, Stratigraphic. Montana > Beaverhead County. Montana > Madison County. From 65 to 140 million years ago
Online Access:	https://purl.fdlp.gov/GPO/gpo66077

Description
Item Description:	Title from title screen (viewed Aug. 28, 2014).
Physical Description:	1 online resource (iv, 31 pages) : illustrations, maps.
Bibliography:	Includes bibliographical references (pages 25-27).