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<br /> <br />~~"'1~8 <br />'..I 'J 0.~ '-~... <br /> <br />UNITED STATES <br />DEPARTMENT OF THE INTERI(JlR <br />GEOLOGICAL SURVEY <br /> <br />RESULTS OF TEST DRILLING <br />AT 'tHE <br />CENTRAL GREAT PLAINS FIELD STATION NEAR AKRON <br />NORTHEASTERN COLORADO <br /> <br />By <br /> <br />Warren E. Hofstra <br /> <br />OPEN-FILE REPORT <br /> <br />STATE Of,COLORADO <br />j'~ H '~l) :\ r:~__r'j <br />u ~ 'j lp"..Jr\~\.""" <br />-; i~/l:~ !"~ T <br /> <br /> <br />..&pa.Ek...._...._........_........, <br /> <br />WATER <br />RlESOURCES <br />DnVnSION <br /> <br />Colorado District <br /> <br />Denver, Colorado <br />June 1970 <br /> <br />~'~l~;~~~jii~tfJ;j~,;. . . <br /> <br /> <br />',',' <br /> <br />."- <br /> <br />lJ <br /> <br />- ". <br />,,-~. ,"-,-_. .-..:-"",-~ ..' <br /> <br />,',-:,',' <br />-;~. ';<'. <br />~_~; ,,~~ ;--J<t,-_,,~_~-l~. <br /> <br />.' <br />