| Reference | {Deposit:: AUSTIN GEORGE S., 1972, INDIANA GEOLOGICAL SURVEY, PAGE 22.}{Deposit:: CLAY AND MOLDING SAND ARE MINED FROM MEDIUM-GRAINED QUARTZOS}{Deposit:: AND WISCONSIAN LAKE CLAY.}{Deposit:: MINERAL INDUSTRIES ESTABLISHMENTS IN INDIANA, 1979. U. S.}{Deposit:: BUREAU OF MINES.}{Deposit:: RCF AND CMS LISTS 10/81} |