Karlstrom, Thor N. V.,  1920- <br/><br/>
Geology and ore deposits of the Hecla mining district, Beaverhead County, Montana. 

 - Butte,  Montana School of Mines,  1948. 
 - 87 p.  illus., maps (part fold.)  28 cm. 
<br/><br/>Bibliography: p. 85-87. 
<br/><br/><label>LCCN: </label>gs 49000161  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Montana--Hecla district.<br/>Ore deposits--Montana--Hecla district.
<br/><br/><label>LC Class. No.: </label>TN24.M9  / K3