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<br />Geology <br />and Ore Deposits^/ <br />of the Front Range <br />Colorado <br />By T. S. COVERING and E. N. GODDARD <br />GEOLOGICAL SURVEY PROFESSIONAL, PAPER 223 <br />Prepared in cooperation with the <br />Colorado State Geological Survey Board <br />and the Colorado Metal Mining Fund <br />UNITED STATES GOVERNMENT PRINTING OFFICE,~NASHINGTON: 1950 <br />