Smedes, Harry Wynn,  1926- <br/><br/>
Geology and igneous petrology of the northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana, 
by Harry W. Smedes. 
 - Washington,  U.S. Govt. Print. Off.,  1966. 
 - v, 116 p.  illus. (1 col.), maps (1 col.)  29 cm. 
 - Geological Survey professional paper 510 .
 - Geological Survey (U.S.).  Professional paper ;  510. .
<br/><br/> Part of illustrative matter in pocket.  "Prepared partly on behalf of the U.S. Atomic Energy Commission." 
<br/><br/>Bibliography: p. 113-116. 
<br/><br/><label>LCCN: </label>gs 66000259  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Montana--Elkhorn Mountains.<br/>Petrology--Montana--Elkhorn Mountains.<br/>Igneous rocks.
<br/><br/><label>LC Class. No.: </label>QE75  / .P9 no. 510 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.16:510