00793cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040001900111042001200130050001600142100003400158245008700192260004400279300004500323410005700368504002800425650003800453650004300491999001700534gs 49000161 DLC20260227111355.0780815s1948    mtua          000 0 eng    ags 49000161   a(OCoLC)4143570  aDLCcTxEUdDLC  apremarc00aTN24.M9bK31 aKarlstrom, Thor N. V.,d1920-10aGeology and ore deposits of the Hecla mining district, Beaverhead County, Montana.  aButte,bMontana School of Mines,c1948.  a87 p.billus., maps (part fold.)c28 cm.20aMontana Bureau of Mines and Geology.tMemoirvno. 25  aBibliography: p. 85-87. 0aGeologyzMontanazHecla district. 0aOre depositszMontanazHecla district.  c28388d28388