Wills Point Formation
Hooper Formation
Calvert Bluff Formation
Neylandville and Marlbrook Marls, undivided
Simsboro Formation
Kemp clay
Kincaid Formation
Alluvium
Wolfe City Formation
Nacatoch Sand
Pecan Gap Chalk
Terrace deposits
High gravel deposits
Kemp clay and Corsicana Marl, undivided
Quaternary deposit, undivided