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Geologic units in Jasper county, Texas

Lissie Formation (Quaternary; Middle Pleistocene) at surface, covers 22 % of this area

Lissie Formation

Beaumont Formation, areas predominantly sand (Quaternary; Late Pleistocene) at surface, covers 19 % of this area

Beaumont Formation, areas predominantly sand

Willis Formation (Pliocene) at surface, covers 16 % of this area

Willis Formation

Fleming Formation (Miocene) at surface, covers 11 % of this area

Fleming Formation

Catahoula Formation (Oligocene) at surface, covers 11 % of this area

Catahoula Formation

Alluvium (Holocene) at surface, covers 10 % of this area

Alluvium

Deweyville Formation (Quaternary; Pleistocene and Holocene?) at surface, covers 6 % of this area

Deweyville Formation

Beaumont Formation, areas predominantly clay (Quaternary; Late Pleistocene) at surface, covers 4 % of this area

Beaumont Formation, areas predominantly clay

Terrace deposits (Pleistocene and Holocene) at surface, covers 0.7 % of this area

Terrace deposits

Whitsett Formation (Oligocene and Eocene) at surface, covers 0.6 % of this area

Whitsett Formation

Nash Creek Formation (Oligocene) at surface, covers 0.3 % of this area

Nash Creek Formation