Reference | {Deposit:: THE GIVEN LOCATION INCLUDES PITS OPERATED BY CONCRETE SAND}{Deposit:: AND MATERIALS CO., IN THE NENW, NWNW, SESW, AND NWSE OF SEC}{Deposit:: 12 T98N R37W}{Deposit:: IOWA ST HWY COMMISSION AGGREGATE RESOURCE LISTING 1977}{Deposit:: MSHA 1981 METAL-NONMETAL MINE FILE REFERENCE} |