| Reference | {Deposit:: BURLINGTON - KEOKUK FM.}{Deposit:: MT. VERNON QUAD. 1971}{Deposit:: MGS 1967 MINED LAND INVENTORY}{Deposit:: MGS VOL.21, PP.223-234 MOORE 1928}{Deposit:: ASCS PHOTO CT-1HH-16 7-10-67 1:20000 - 4 AC}{Deposit:: USGS PHOTO GS-VCJU 1-165 3-4-70 1:20000} |