| Reference | {Deposit:: MOORE MICHAEL C., 1975, INDIANA GEOLOGICAL SURVEY, PAGE 40.}{Deposit:: MESA HEALTH AND SAFETY INSPECTION REPORT APRIL 28-MAY 1, 197}{Deposit:: OPERATION IS A COMBINED OPEN PIT AND DREDGING OPERATION WITH}{Deposit:: INCLUDED. DREDGING SECTION PRODUCES 20 PERCENT OF THE SAND}{Deposit:: GRAVEL, THE REMAINDER BY THE OPEN PIT SECTION.}{Deposit:: RCF LIST 10/81} |