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Geologic units in Hardin county, Texas

Lissie Formation (Quaternary; Middle Pleistocene) at surface, covers 56 % of this area

Lissie Formation

Beaumont Formation, areas predominantly sand (Quaternary; Late Pleistocene) at surface, covers 24 % of this area

Beaumont Formation, areas predominantly sand

Alluvium (Holocene) at surface, covers 6 % 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 5 % of this area

Beaumont Formation, areas predominantly clay

Terrace deposits (Pleistocene and Holocene) at surface, covers 3 % of this area

Terrace deposits