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r , , ~. <br />UNITED STATES DEPARTMENT OF THE INTERIOR <br />GEOLOGICAL SURVEY <br />EXPLORATORY DRILLING IN THE McCALLUM COAL FIELD, <br />JACKSON COUNTY, COLORADO, <br />AUGUST-NOVEMBER 1977 <br />By <br />Dawn Hill Madden <br />RECEIVED <br />NOV 0 2 2000 <br />Division of Minerals and Geology <br />Open-File Report 77-888 <br />1977 <br />This report has not been edited for conformity <br />with Geological Survey editorial standards or <br />stratigraphic nomenclature. <br />