Truini, Margot, <br/><br/>
Preliminary hydrogeologic assessment near Tassi and Pakoon Springs, western part of Grand Canyon-Parashant National Monument, Arizona  / 
by Margot Truini ; prepared in cooperation with the National Park Service. 
 - 1 online resource (iv, 12 pages) :  color illustrations, color maps. 
 - Scientific investigations report ;  2012-5276 .
 - Scientific investigations report ;  2012-5276. .
<br/><br/> CRDP Program record. 
<br/><br/>Includes bibliographical references (page 12). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydrology--Arizona--Grand Canyon-Parashant National Monument.<br/>Hydrology--Arizona--Pakoon Springs.<br/>Hydrology--Arizona--Tassi Spring.<br/>Hydrology.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Arizona--Grand Canyon-Parashant National Monument.
<br/><br/><label>GPO Item No.: </label>0624-B-02 (online) 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.42/4-4:2012-5276