Garrard Siltstone and Kope and Clays Ferry Formations, undivided
Ashlock Formation, Grant Lake and Calloway Creek Limestones, and Fairview Formation, undivided
Alluvium; includes glacial deposits along the Ohio River and its tributaries west of Cannelton locks
Limestone (60%) and shale (40%) interbedded; gray to bluish gray weathers light gray; planar to lenticular, thin to medium bedded; 0 to 80 feet thick.
Glacial deposits, undifferentiated; shown locally