'Land of Hills'), and called locally in Levantine Arabic Diret el Tlūl, is a lava region in southern Syria.
It lies about 65 kilometers east of Damascus, located in the central part of the Rif Dimashq administrative district (governorate or muhafazat).
Dirat al-Tulul forms the northernmost extension of the massive alkaline lava field of Harrat al-Shamah.
Dirat al-Tulul also forms the western part of the Syrian steppe known as Badiyat al-Sham.
of precipitation per year and it is sparsely populated, due to its aridity and rocky terrain.