Fenneman, Nevin Melancthon,  1865-1945. <br/><br/>
The Yampa coal field, Routt county, Colorado / 
by N.M. Fenneman and Hoyt S. Gale, with a chapter on the character and use of the Yampa coals by Marius R. Campbell. 
 - Washington,  Govt. Print. Off.,  1906. 
 - 96, vi p. :  ill., ix pl. (incl. fold. map) diagrs. ;  24 cm. 
 - U.S. Geological survey. Bulletin  no. 297 .
 - Geological Survey (U.S.).  Bulletin ;  no. 297. .
<br/><br/> Subject series: A, Economic geology, 84; B, Descriptive geology, 104.  Issued also as House doc. no. 936, 59th Cong., 1st sess.  Literature : p. 11.  Includes index. 
<br/><br/><label>LCCN: </label>gs 07000679  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal--Colorado.
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 297