Stratigraphy of mid-Cretaceous Blackleaf and lower part of the Frontier formations in parts of Beaverhead and Madison counties, Montana / by Thaddeus S. Dyman and Douglas J. Nichols.
- Physical Description: 1 online resource (iv, 31 pages) : illustrations, maps.
- Publisher: [Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1988.
- Distributor: [Washington, D.C.] : United States Government Printing Office
|General Note:|| Title from title screen (viewed Aug. 28, 2014).
|Bibliography, etc. Note:|| Includes bibliographical references (pages 25-27).
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|Subject:||Geology > Montana > Beaverhead County.
Geology > Montana > Madison County.
Geology, Stratigraphic > Cretaceous.
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