Idehan Ubari

(also Ubari Sand Sea), a sandy desert in Libya, located at an elevation of 400–500 m. The relief mainly features ridges, although isolated dunes with a relative height of up to 200 m are found. Annual precipitation is approximately 10 mm. The desert is almost devoid of vegetation. The depressions have salt marshes and lakes, from which soda and salt are mined. There is nomadic animal breeding. Around the borders of the deserts there are small oases with groves of date palms.