Coffin, R. C.  1886-1972. <br/><br/>
Preliminary report on the underground waters of a part of southeastern Colorado, 
by R. C. Coffin and A. J. Tieje. 
 - Denver, Col.,  Eames brothers, state printers,  1921. 
 - 15 p.  map, tables.  23 cm. 
<br/><br/> At head of title: Colorado Geological survey, R. D. George, state geologist. 
<br/><br/>Ground waters of parts of Elbert, El Paso, and Lincoln counties, by R. C. Coffin. - Underground waters of parts of Lincoln and Crowley counties, by A. J. Tieje. 
<br/><br/><label>LCCN: </label>gs 21000271  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water-supply--Colorado.
<br/><br/><label>LC Class. No.: </label>QE91  / .A4 no. 26