Geologic units in Galveston county, Texas

Beaumont Formation, areas predominantly clay (Quaternary; Late Pleistocene) at surface, covers 40 % of this area

Beaumont Formation, areas predominantly clay

Beaumont Formation, areas predominantly sand (Quaternary; Late Pleistocene) at surface, covers 29 % of this area

Beaumont Formation, areas predominantly sand

Alluvium (Holocene) at surface, covers 14 % of this area

Alluvium

Barrier ridge and barrier flat deposts (Quaternary; Holocene) at surface, covers 12 % of this area

Barrier ridge and barrier flat deposts

Fill and spoil (Holocene) at surface, covers 5 % of this area

Fill and spoil