Johnson, Ross B.  1919- <br/><br/>
Geology of the Huerfano park area Huerfano and custer counties Colorado / 
by Ross B. Johnson. 
 -- Washington :   United States Government Printing Office,   1959 
 - P. 87-119 + map. -- 
 (Geological Survey Bulletin  ;  1071-D).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Colorado<br/>Petrología<br/>Rocas
<br/><br/><label>Universal Decimal Class. No.: </label>552(788)