Llano EstacadoLla·no Es·ta·ca·do
extensive high plain in W Tex. & SE N.Mex.: S extension of the Great Plains: c. 40,000 sq mi (103,600 sq km)
Origin of Llano EstacadoSp, literally , staked plain
An extensive, semiarid plateau region of the southern Great Plains in southeast New Mexico, western Texas, and northwest Oklahoma. The grazing lands also have resources of oil and natural gas.