APPROXIMATELY LOCATED IN OR AROUND THE JUMBO MINING DISTRICT; PAPKE INDUSTRIAL MINERALS FILES; ALTERATION ARTICLE; GEOLOGY; GEOLOGIC MAP; GEOCHEMISTRY; COPYRIGHTED ARTICLE NOT SCANNED: ECONOMIC GEOLOGY, VOL. 93, 1998; SITE NAME: JUMBO MINES; COMMODITY: ALUNITE, GOLD SILVER; AUTHOR: VIKRE, P.G.