Geologic units in Harrison county, Missouri

Kansas City Group (Late Pennsylvanian-Upper Series-Missourian Stage) at surface, covers 74 % of this area

Cyclic deposits, limestone and shale with minor sandstone and coal.

Marmaton Group (Middle Pennsylvanian-Middle Series-Desmonian Stage) at surface, covers 11 % of this area

Cyclic deposits, shale and limestone with sandstone, clay and several coal beds, some workable.

Pleasanton Group (Late Pennsylvanian-Upper Series-Missourian Stage) at surface, covers 10 % of this area

Dominantly shale and sandstone with minor coal.

Lansing Group (Late Pennsylvanian-Upper Series-Missourian Stage) at surface, covers 5 % of this area

Cyclic deposits of limestone and shale.

Cherokee Group - Cabaniss Subgroup, Krebs Subgroup (Middle Pennsylvanian-Middle Series-Desmonian Stage) at surface, covers 0.3 % of this area

Cabaniss Subgroup - cyclic deposits, shale, sandstone, clay and several workable coal beds. Krebs Subgroup - cyclic deposits, sandstone, siltstone, shale, clay and some workable coal beds.