1. The Bols�n de Mapim?consists of desert plains separated by low mountain ranges. 2. Ayers Rock rises more than 1, 130 feet above the surrounding desert plain . 3. The name " Tiris " refers to a desert plain of the Sahara. 4. The central complex in the network is on a broad desert plain outside Socorro. 5. The park also is characterized by extensive semi-desert plains interspersed by " Quebradas ". 6. The famous Nazca lines, huge pre-Columbian etchings on a desert plain , are near Nazca. 7. The 30 % not covered by water is mostly forests, deserts plains , mountains and plateaus. 8. The crater lies on a poorly vegetated desert plain that slopes to Salar de Coipasa. 9. PEOPLE : About 2 million people live in Mongolia, a land of vast desert plains . 10. It was described as being in a flat, desert plain , with gardens and date groves.