Geologic units in Livingston county, Illinois

Shelburn-Patoka Formations undivided (Pennsylvanian (Kasimovian)) at surface, covers 52 % of this area

Shelburn-Patoka Formations undivided.

Carbondale Formation (Pennsylvanian (Moscovian to Kasimovian)) at surface, covers 30 % of this area

Carbondale Formation.

Bond Formation (Pennsylvanian (Kasimovian)) at surface, covers 10 % of this area

Bond Formation

Mattoon Formation (Pennsylvanian (Kasimovian)) at surface, covers 6 % of this area

Mattoon Formation.

Tradewater Formation (Pennsylvanian (Bashkirian to Moscovian)) at surface, covers 3 % of this area

Tradewater Formation