Lueders Formation
(Permian; Leonard Series) at surface, covers 21 % of this area Lueders Formation
Moran Formation
(Permian; Wolfcamp Series) at surface, covers 10 % of this area Moran Formation
Talpa Formation
(Permian; Leonard Series) at surface, covers 9 % of this area Talpa Formation
Admiral Formation
(Permian; Wolfcamp Series) at surface, covers 9 % of this area Admiral Formation
Grape Creek Formation
(Permian; Leonard Series) at surface, covers 5 % of this area Grape Creek Formation
Alluvium
(Holocene) at surface, covers 5 % of this area Alluvium
Elm Creek Formation
(Permian; Leonard Series) at surface, covers 4 % of this area Elm Creek Formation
Sedwick Formation
(Permian; Wolfcamp Series) at surface, covers 4 % of this area Sedwick Formation
Clear Fork Group
(Permian; Leonard Series) at surface, covers 3 % of this area Clear Fork Group
Terrace deposits
(Pleistocene and Holocene) at surface, covers 2 % of this area Terrace deposits
Pueblo Formation
(Permian; Wolfcamp Series) at surface, covers 0.9 % of this area Pueblo Formation
Seymour Formation
(Middle Pleistocene; Irvingtonian) at surface, covers 0.7 % of this area Seymour Formation
Playa deposits
(Pleistocene and Holocene) at surface, covers 0.1 % of this area Playa deposits
