LEADER 01870nem  2200469Ia 450 
001 9910696509003321
005 20080519123140.0
035   $a(CKB)5470000002379766
035   $a(OCoLC)228300733
035   $a(EXLCZ)995470000002379766
100   $a20080519d2003      ua              
101 0 $aeng
120   $ab||||||||||||
121   $a|||||||||
124   $bd
135   $aurcnu|||m||||
181   $ccrd$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aFerricrete, manganocrete, and bog iron occurrences with selected sedge bogs and active iron bogs and springs in the upper Animas River watershed, San Juan County, Colorado$b[electronic resource] /$fby Douglas B. Yager ... [and others]
205   $aVersion 1.1.
210  1$aDenver, Colo. :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d2003.
215   $a1 electronic map $cHTML, digital, PDF file
225 1 $aU.S. Geological Survey miscellaneous field studies map ;$vMF-2406
300   $aTitle from HTML index page (viewed Apr. 3, 2003).
300   $aIncludes text, col. ill., and index map.
320   $aIncludes bibliographical references.
606   $aBogs$zColorado$zSan Juan County$vMaps
606   $aIron ores$xGeology$zColorado$zSan Juan County$vMaps
606   $aManganese ores$xGeology$zColorado$zSan Juan County$vMaps
608   $aMaps.$2lcgft
615  0$aBogs
615  0$aIron ores$xGeology
615  0$aManganese ores$xGeology
700   $aYager$b Douglas B$01384350
712 02$aGeological Survey (U.S.)
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910696509003321
996   $aFerricrete, manganocrete, and bog iron occurrences with selected sedge bogs and active iron bogs and springs in the upper Animas River watershed, San Juan County, Colorado$93539677
997   $aUNINA