Geologic units in Jessamine county, Kentucky

Lexington Limestone (Ordovician) at surface, covers 76 % of this area

Lexington Limestone

High Bridge Group (Ordovician) at surface, covers 14 % of this area

High Bridge Group

Garrard Siltstone and Kope and Clays Ferry Formations, undivided (Ordovician) at surface, covers 9 % of this area

Garrard Siltstone and Kope and Clays Ferry Formations, undivided

Ashlock Formation, Grant Lake and Calloway Creek Limestones, and Fairview Formation, undivided (Ordovician) at surface, covers 0.9 % of this area

Ashlock Formation, Grant Lake and Calloway Creek Limestones, and Fairview Formation, undivided

Porters Creek Clay (Paleocene) at surface, covers < 0.1 % of this area

Porters Creek Clay