Title: Bentonite deposits in marine Cretaceous formations, Hardin district, Montana and Wyoming
First published: 1956
Subjects: Bentonite deposits, Formations (Geology), Geology, Geology, Stratigraphic, Groups (Stratigraphy), Mines and mineral resources, Rocks, Sedimentary, Sedimentary Rocks, Shale, Stratigraphic Geology
Places: Big Horn County, Montana, Sheridan County, Wyoming
Time periods: Cretaceous
LC classification: QE75 .B9 no.1023, TN948.B4K55 .B9 no.1023