Izett, Glen Arthur,  1928- <br/><br/>
The Pierre shale near Kremmling, Colorado,  and its correlation to the east and the west, 
by G. A. Izett, W. A. Cobban, and J. R. Gill 
 - Washington, D.C :  United States Government Printing Office,  1971 
 - iii, 19 p. :  ill., maps. ;  29 cm. 
 - Shorter contributions to general geology Geological Survey professional paper ;  684-A .
<br/><br/> Part of illustrative matter fold. in pocket 
<br/><br/>Bibliography: p. 18-19 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic--Cretaceous<br/>Geology--Survey--Colorado--Grand County
<br/><br/><label>Dewey Class. No.: </label>551.77