Büyüktatlı is a neighborhood in Afşin District, in Kahramanmaraş Province, Türkiye. Büyüktatlı lies at 1,560 m above sea level, in the Binboğa mountains. It has 779 inhabitants. The nearest city is Afşin, 28 km to the south. Among the landmarks around are Eshab-ı Kehf Kulliye (29 km) and Tanır rock inscription (9.2 km).
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