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Geologic units in Upshur county, Texas

Queen City Sand (Eocene) at surface, covers 78 % of this area

Queen City Sand

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

Alluvium

Reklaw Formation (Eocene) at surface, covers 3 % of this area

Reklaw Formation

Weches Formation (Eocene) at surface, covers 3 % of this area

Weches Formation

Sparta Sand (Eocene) at surface, covers 2 % of this area

Sparta Sand

Carizzo Sand (Eocene) at surface, covers 2 % of this area

Carizzo Sand

Terrace deposits (Pleistocene and Holocene) at surface, covers 2 % of this area

Terrace deposits