Crawford, R. D.  1873- <br/><br/>
A preliminary report on the geology of the Monarch mining district, Chaffee County, Colorado, 
by R. D. Crawford. 
 - [Denver, Colo.,  The Smith-Brooks printing company, state printers ,  1910] 
 - 78 p.  3 fold. pl., 2 fold. maps, diagrs.  23 cm. 
<br/><br/><label>LCCN: </label>gs 10000454  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Colorado.
<br/><br/><label>LC Class. No.: </label>QE91  / .A4 vol. 1