Collection Results
Thickness of upper Cretaceous rocks from the base of the Niobrara Formation to the top of the Frontier Formation, including the Carlile shale, Greenhorn Formation, and Sage Breaks shale, Powder River Basin, Wyoming and Montana [microform]
More books by this author:
Geologic atlas of the United States.
Book
Annual report of the United States Geological Survey to the Secretary of the Interior.
Book
Bibliography of North American geology.
Book
Author: | Geological Survey (U.S.) |
Type: | Microform |
Language: | English |
Year: | 1987 |
Available: | Unknown, check CountyCat |