Geologic units in Motley county, Texas

Quartermaster Formation (Permian; Guadalupe Series) at surface, covers 25 % of this area

Quartermaster Formation; North and central Texas including panhandle.

Whitehorse Group, undivided (Permian; Guadalupe Series) at surface, covers 25 % of this area

Whitehorse Group, undivided

Lingos Formation (Middle (?) Pleistocene to Recent) at surface, covers 16 % of this area

Lingos Formation

Sand sheet deposits (Holocene) at surface, covers 13 % of this area

Sand sheet deposits

Ogallala Formation (Pliocene to Miocene) at surface, covers 10 % of this area

Ogallala Formation

Dockum Group, undivided (Late Triassic) at surface, covers 6 % of this area

Dockum Group

Alluvium (Holocene) at surface, covers 3 % of this area

Alluvium

Quaternary deposit, undivided (Quaternary) at surface, covers 2 % of this area

Quaternary deposit, undivided

Blackwater Draw Formation (Pleistocene) at surface, covers 0.9 % of this area

Blackwater Draw Formation

Dune sand sheet deposits (Holocene) at surface, covers 0.1 % of this area

Dune sand sheet deposits

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

Terrace deposits

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

Playa deposits

Sand dune deposits (Holocene) at surface, covers < 0.1 % of this area

Sand dune deposits