Thickness of the upper Cretaceous Niobrara Formation, Powder River Basin, Wyoming and Montana [microform]

Author:: Geological Survey (U.S.)
Publisher:: The Survey
Subject:: Geology, Stratigraphic
Petrology
Spatial Coverage:: Powder River Basin (Wyo. and Mont.) and Niobrara Formation
Temporal Coverage:: Cretaceous
Language:: English
Year:: 1987
Date Issued:: 2002-06-01T04:00:00Z
Date Modified:: 2002-06-01T04:00:00Z
Library Catalog Record:: https://search.library.yale.edu/catalog/5078184
Digital Collections Record:: No Digital Collections record

Thickness of the upper Cretaceous Niobrara Formation, Powder River Basin, Wyoming and Montana [microform] Yale Public content