The Poison Ridge volcanic center and related mineralization, Grand and Jackson Counties, Colorado, 
by Douglas M. Kinney [and others] 
 - Washington,  1968. 
 - iii, 8 p.  illus., maps.  26 cm. 
 - Circular  594 .
 - Geological Survey circular ;  594. .
<br/><br/>Bibliography: p. 8. 
<br/><br/><label>LCCN: </label>gs 68000370  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology--Colorado--Grand County.<br/>Petrology--Colorado--Jackson County.<br/>Ore deposits--Colorado--Grand County.<br/>Ore deposits--Colorado--Jackson County.
<br/><br/><label>LC Class. No.: </label>QE75  / .C5 no. 594 
<br/><br/><label>Dewey Class. No.: </label>552/.3