Geologic units in Crockett county, Texas

Edwards Limestone (Early Cretaceous) at surface, covers 55 % of this area

Edwards Limestone

Buda Limestone (Early Cretaceous) at surface, covers 26 % of this area

Buda Limestone; Eastern part of Trans-Pecos and High Plains and Western part of Trans-Pecos and North, central, and south Texas including Quaternary for all of west Texas.

Quaternary deposit, undivided (Quaternary) at surface, covers 16 % of this area

Quaternary deposit, undivided

Maxon Sandstone and Glen Rose Limestone, undivided (Early Cretaceous) at surface, covers 1.0 % of this area

Maxon Sandstone and Glen Rose Limestone, undivided

Fredericksburg Group (Early Cretaceous; Comanchean Series) at surface, covers 0.5 % of this area

Fredericksburg Group

Terrace deposits (Pleistocene and Holocene) at surface, covers 0.4 % of this area

Terrace deposits

Sand sheet deposits (Holocene) at surface, covers 0.2 % of this area

Sand sheet deposits

Bouquillas Formation (Late Cretaceous) at surface, covers 0.2 % of this area

Bouquillas Formation

Alluvium (Holocene) at surface, covers 0.2 % of this area

Alluvium

Washita Group (Early and Late Cretaceous; Comanchean Series) at surface, covers 0.2 % of this area

Washita Group

Playa deposits (Pleistocene and Holocene) at surface, covers 0.1 % of this area

Playa deposits

Gatuna Formation (Middle (?) Pleistocene) at surface, covers < 0.1 % of this area

Gatuna Formation

Finlay Limestone (Early Cretaceous; Comanchean; Albian Series) at surface, covers < 0.1 % of this area

Finlay Limestone

Permian rocks, undivided (Permian) at surface, covers < 0.1 % of this area

Permian rocks, undivided