Geologic units in Woodford county, Kentucky

Garrard Siltstone and Kope and Clays Ferry Formations, undivided (Ordovician) at surface, covers 1 % of this area: Garrard Siltstone and Kope and Clays Ferry Formations, undivided
Lithology: shale; limestone; siltstone
High Bridge Group (Ordovician) at surface, covers 7 % of this area: High Bridge Group
Lithology: limestone; shale; dolostone (dolomite)
Lexington Limestone (Ordovician) at surface, covers 91 % of this area: Lexington Limestone
Lithology: limestone; shale