The deserts of central, Zaunguzskij and south-eastern Karakum, as well as other deserted lands, occupy more than 80 per cent of the country. Almost 20 per cent of the country’s territory is covered by mountains: the Kopetdag Mountains and, to the north, the separated mountain ridges of Small and Grand Balkhany. The Koytendag Mountains are located to the east, as well as the highest peaks of the country, up to 3,140 m above sea level.