Loughlin, G. F.  1880-1946. <br/><br/>
Guides to ore in the Leadville district, Colorado, 
by G. F. Loughlin. 
 - Washington,  Govt. print. off.,  1926. 
 - III, 37 p.  illus., VII fold. pl. (incl. map in pocket). 
 - U.S. Geological survey.  Bulletin 779 .
<br/><br/> At head of title: Department of the interior. 
<br/><br/><label>LCCN: </label>gs 26000129  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ores--Colorado--Leadville.<br/>Ore deposits.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 779