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<br />(ll)2G47 <br /> <br />UNITED STATES <br />DEPARTMENT OF THE INTERIOR <br />GEOLOGICAL SURVEY <br /> <br />HYDRO LOG I C RECONNAI SSANCE OF THE YAMPA R I VERDUR I NG LOW FLOW, <br /> <br />DINOSAUR NATIONAL MONUMENT, NORTHWESTERN COLORADO <br /> <br />By Timothy Doak Steele, Dennis A. Wentz, and James W. Warner <br /> <br />Open-File Report 78-226 <br /> <br />'. <br /> <br />'. <br /> <br />Lakewood, Colorado <br /> <br />April 1978 <br /> <br />-"''''- <br />