Richards, Paul W. <br/><br/>
Geology of the Bighorn Canyon-Hardin area, Montana and Wyoming :  a description of the geography, stratigraphy, structure, geomorphology, and mineral resources of the area / 
by Paul W. Richards. 
 - Washington :  U.S. Govt. Print. Off.,  1955. 
 - v, 93 p. :  ill., 4 maps, diagrs., tables ;  24 cm. 
 - U. S. Geological Survey. Bulletin ;  1026 .
<br/><br/> Part of illustrative matter is folded in pocket.  Includes index. 
<br/><br/>"Literature cited": p. 88-90. 
<br/><br/><label>LCCN: </label>gs 56000115  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Bighorn-Hardin area.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 1026