Llano Estacado

[ lah-noh es-tuh-kah-doh, lan-oh ]
/ ˈlɑ noʊ ˌɛs təˈkɑ doʊ, ˈlæn oʊ /

noun

a large plateau in the SW United States, in W Texas and SE New Mexico: cattle-grazing region. About 1000–5000 feet (300–1500 meters) above sea level.
Also called Staked Plain.

British Dictionary definitions for llano estacado

Llano Estacado
/ (ˈlɑːnəʊ ˌɛstəˈkɑːdəʊ) /

noun

the S part of the Great Plains of the US, extending over W Texas and E New Mexico: oil and natural gas resources. Chief towns: Lubbock and Amarillo. Area: 83 700 sq km (30 000 sq miles) Also called: Staked Plain