00825cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040004700111050001800158100002200176245006900198260004400267300002900311490005500340504002800395650004300423650004200466830005800508999001700566gs 60000289 DLC20260227111409.0790301s1960    mtub     b    000 0 eng c  ags 60000289   a(OCoLC)4704519  aU.S. Geol. Survey. Libr.cTxEUdOCoLCdDLC00aTN490.N65bC71 aCrowley, Frank A.10aColumbium-rare-earth deposits, southern Ravalli County, Montana.  aButte,bMontana School of Mines,c1960.  aiv, 47 p.bmaps.c28 cm.1 aMontana. Bureau of Mines and Geology. Bulletinv18  aBibliography: p. 46-47. 0aNiobium oreszMontanazRavalli County. 0aRare earthszMontanazRavalli County. 0aBulletin (Montana Bureau of Mines and Geology) ;v18.  c29487d29487