01040cam a22002771 4500 gs 34000192 DLC 20260227111338.0 720628s1934 dcu abf f000 0 eng gs 34000192 (OCoLC)344326 DLC ODaWU MeWC DLC premarc QE75 .P9 no. 176 TN24.C6 L78 Copy 2. Lovering, T. S. (Thomas Seward), 1896-1991. Geology and ore deposits of the Breckenridge mining district, Colorado / by T.S. Lovering. Washington [D.C.] : U.S. Govt. Print. Off., 1934 vi, 64 p., 15 leaves of plates : ill., maps (some col.) ; 29 cm Professional paper / U.S. Dept. of the Interior, Geological Survey ; 176 5 maps in pocket Includes bibliographical references and index Geology Colorado Summit County. Ore deposits Colorado Summit County. Geological Survey professional paper ; 176 27117 27117