Geologic units in Hart county, Kentucky

Ste. Genevieve and St. Louis Limestones, undivided (Mississippian) at surface, covers 51 % of this area

Ste. Genevieve and St. Louis Limestones, undivided; includes Salem Limestone west of Christian County

Rocks of Chesterian age, lower part (Upper Mississippian) at surface, covers 37 % of this area

Rocks of Chesterian age, lower part

Caseyville Formation (Lower to Middle Pennsylvanian) at surface, covers 6 % of this area

Caseyville Formation

Alluvium (Pleistocene to Holocene) at surface, covers 3 % of this area

Alluvium; includes glacial deposits along the Ohio River and its tributaries west of Cannelton locks

Salem, Warsaw, and Harrodsburg Limestones, undivided (Mississippian) at surface, covers 3 % of this area

Salem, Warsaw, and Harrodsburg Limestones, undivided

Renfro and Muldraugh Members of Borden Formation and Fort Payne Formation, undivided (Mississippian) at surface, covers 0.2 % of this area

Renfro and Muldraugh Members of Borden Formation and Fort Payne Formation, undivided

Rocks of Chesterian age, upper part (Upper Mississippian) at surface, covers 0.1 % of this area

Rocks of Chesterian age, upper part