Geologic units in Titus county, Texas

Wilcox Group, undivided (Paleocene to Eocene) at surface, covers 58 % of this area

Wilcox Group, undivided

Alluvium (Holocene) at surface, covers 16 % of this area

Alluvium

Midway Group, undivided (Paleocene) at surface, covers 9 % of this area

Midway Group, undivided

Reklaw Formation (Eocene) at surface, covers 6 % of this area

Reklaw Formation

Queen City Sand (Eocene) at surface, covers 5 % of this area

Queen City Sand

Terrace deposits (Pleistocene and Holocene) at surface, covers 5 % of this area

Terrace deposits

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

Carizzo Sand