LEADER 01848oam 2200505 450 001 9910706705803321 005 20180202103706.0 035 $a(CKB)5470000002458404 035 $a(OCoLC)896810284 035 $a(OCoLC)995470000002458404 035 $a(EXLCZ)995470000002458404 100 $a20141123d1974 ua 0 101 0 $aeng 135 $aurmn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aGeology and ore deposits of the Rico District, Colorado /$fby Edwin T. McKnight 210 1$aWashington :$cUnited States Department of the Interior, Geological Survey,$d1974. 215 $a1 online resource (iv, 100 pages) $cillustrations, maps +$e3 plates 225 1 $aGeological Survey professional paper ;$v723 300 $aTitle from title screen (viewed October 2, 2014). 300 $a"A discussion of the geology and potential of a famous old silver camp which, under modern mineral technology, became a lead, zinc, and pyrite camp." 320 $aIncludes bibliographical references and index (pages 96-97). 606 $aGeology$zColorado$zDolores County 606 $aMines and mineral resources$zColorado$zDolores County 606 $aGeology$2fast 606 $aMines and mineral resources$2fast 607 $aColorado$zDolores County$2fast 615 0$aGeology 615 0$aMines and mineral resources 615 7$aGeology. 615 7$aMines and mineral resources. 700 $aMcKnight$b Edwin Thor$f1902-1992,$01399317 712 02$aGeological Survey (U.S.), 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bOCLCA 801 2$bGPO 906 $aBOOK 912 $a9910706705803321 996 $aGeology and ore deposits of the Rico District, Colorado$93488100 997 $aUNINA