HARRER C.M. AND KELLEY F.J. RECONNAISSANCE OF IRON RESOUR-CES IN NEW MEXICO USBM I.C. 8190 P 63 1963PUMPELLY R. AND PUTNAM B.T. REPORT ON THE MINING INDUSTRIESOF THE UNITED STATES (EXCLUSIVE OF PRECIOUS METALS) WITHSPECIAL INVESTIGATIONS INTO THE IRON RESOURCES OF THEREPUBLIC AND INTO THE CRETACEOUS COALS OF THE NORTHWEST,TENTH CENSUS OF THE UNITED STATES, CENSUS OFFICE 1886P 499