Geologic units in Wharton county, Texas

Beaumont Formation, areas predominantly sand (Quaternary; Late Pleistocene) at surface, covers 41 % of this area

Beaumont Formation, areas predominantly sand

Beaumont Formation, areas predominantly clay (Quaternary; Late Pleistocene) at surface, covers 23 % of this area

Beaumont Formation, areas predominantly clay

Alluvium (Holocene) at surface, covers 20 % of this area

Alluvium

Lissie Formation (Quaternary; Middle Pleistocene) at surface, covers 16 % of this area

Lissie Formation