Geologic units in Adair county, Kentucky

Renfro and Muldraugh Members of Borden Formation and Fort Payne Formation, undivided (Mississippian) at surface, covers 48 % of this area

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

Salem, Warsaw, and Harrodsburg Limestones, undivided (Mississippian) at surface, covers 19 % of this area

Salem, Warsaw, and Harrodsburg Limestones, undivided

Limestone bodies in the Fort Payne Formation (Mississippian) at surface, covers 18 % of this area

Limestone bodies in the Fort Payne Formation; including Cane Valley Limestone Member

Wildie, Nada, Halls Gap, Holtsclaw Siltstone, Cowbell, Nancy, Kenwood Siltstone, New Providence Shale, Sunbury Shale, Berea Sandstone, and Bedford Shale, undivided; Borden Formation locally includes Renfro Member in eastern Kentucky (Devonian to Mississippian) at surface, covers 5 % of this area

Wildie, Nada, Halls Gap, Holtsclaw Siltstone, Cowbell, Nancy, Kenwood Siltstone, New Providence Shale, Sunbury Shale, Berea Sandstone, and Bedford Shale, undivided; Borden Formation locally includes Renfro Member in eastern Kentucky

Knifely Sandstone member of the Fort Payne Formation (Mississippian) at surface, covers 4 % of this area

Knifely Sandstone member of the Fort Payne Formation

Alluvium (Pleistocene to Holocene) at surface, covers 4 % of this area

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

Ste. Genevieve and St. Louis Limestones, undivided (Mississippian) at surface, covers 2 % of this area

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

New Albany, Chattanooga, and Ohio Shales, Boyle Dolomite (Limestone), and Sellersburg Limestone, undivided (Devonian to Mississippian) at surface, covers 0.9 % of this area

New Albany, Chattanooga, and Ohio Shales, Boyle Dolomite (Limestone), and Sellersburg Limestone, undivided

Cumberland Formation and Leipers and Catheys (?) Limestones, undivided (Ordovician) at surface, covers < 0.1 % of this area

Cumberland Formation and Leipers and Catheys (?) Limestones, undivided; in southernmost Kentucky