| Reference | {Deposit:: AUSTIN GEORGE S., 1972, INDIANA GEOLOGICAL SURVEY, PAGE 18.}{Deposit:: MESA HEALTH AND SAFETY INSPECTION REPORT APRIL 11-12, 1972.}{Deposit:: A MILL IS LOCATED AT THE PIT SITE.}{Deposit:: SHALE IS MINED FROM 50 FEET OF THE BORDEN GROUP.}{Deposit:: MSHA INSPECTION REPORT 6-18-81.}{Deposit:: RCF AND CMS LISTS 10/81} |