The Maudlow and Sedan Formations of the Upper Cretaceous Livingston Group on the west edge of the Crazy Mountains Basin, Montana /
Skipp, Betty,1928-
McGrew, Laura W.(Laura Wenger),1921-
Geological Survey (U.S.)
United States.Government Printing Office.
Washington : U.S. Govt. Print. Off.,
1977.
Bibliography: p. 66-68.
Geology, Stratigraphic
Volcanic ash, tuff, etc.
Geology