The Tektek Mountains are located on the northern border of the Urfa-Harran plain, between the headwaters of the Tigris and Euphrates rivers. Reaching an altitude of, this spur extends southward from the Tur Abdinmountain range about away. The Şebeke Mountains to the west form a chain together with the Tektek and Susuz Mountains. The Viranşehir plain, which covers an area of, lies between the Tektek and Karacadağ Mountains. The mountain range is composed ofEocene and Miocenelimestone, its valleys formed in the humid climatic conditions characteristic of the interglacial and post-glacial periods. There is no basalt present. The Tektek Mountains are devoid of woodland, with the exception of an area at the northwest end of the range where pistachio trees grow.
Inhabitants
Villages in the Tektek Mountains are inhabited by semi-nomadic pastoralists and agriculturalists of uncertain origin whose housing is constructed low to the ground, and sometimes within it, using the mud upon which they are situated. Crops can be grown in the spring, but the summer heat drives away most of inhabitants, many of whom graze their livestock elsewhere at that time of the year. Nomadic families from the Karacadağ Mountain come to the Tektek Mountains for the autumn and winter seasons to graze their animals and hunt wild game. Near a hill known as Keçili Tepe, there is a small village of the same name.
Ancient sites
The two ancient sites located in the Tektek Mountains are Karahan Tepe, some east of Urfa, and Sumatar Harabesi, some from the same. Sumatar Harabesi is an oasis that served as an ancient watering hole for semi-nomadic peoples, as well as a sacred site with baetyls and altars dedicated to the worship of the deity, Sin. Karahan Tepe is a site that was discovered in 1997 and was dated to c. 9500–9000 BC by Bahattin Çelik, a Turkish archaeologist. Covering an area of, it consists of a number of stone T-pillars and high reliefs depicting, among other images, a winding snake and the battered torso of a naked man. There are also polished rock statues of goats, gazelles and rabbits.
The butter used in Baklavacı Güllüoğlu, baklava made by a company founded by the Güllü brothers in 1871, is made from milk taken from sheep and goats in the Tektek Mountains. The butter is on average five times more expensive than the margarine used by other baklava producers, costing some US$15 per kilo.