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Geologic units in Sutton county, Texas

Edwards Limestone (Early Cretaceous) at surface, covers 78 % of this area

Edwards Limestone

Buda Limestone (Early Cretaceous) at surface, covers 18 % 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 3 % of this area

Quaternary deposit, undivided

Alluvium (Holocene) at surface, covers 1 % of this area

Alluvium

Bouquillas Formation (Late Cretaceous) at surface, covers 0.3 % of this area

Bouquillas Formation

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

Permian rocks, undivided

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

Playa deposits

Buda Limestone and Del Rio Clay, undivided (Late Cretaceous) at surface, covers < 0.1 % of this area

Buda Limestone and Del Rio Clay, undivided; 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.