Çukurova or the Cilician Plain, is a large fertile plain in the Cilicia region of southern Turkey. The plain covers the easternmost areas of Mersin Province, southern and central Adana Province, western Osmaniye Province and northwestern Hatay Province.

Mersin Province, formerly İçel Province, is a province and metropolitan municipality in southern Turkey, on the Mediterranean coast between Antalya and Adana. Its area is 16,010 km2, and its population is 1,916,432 (2022). The provincial capital and the biggest city in the province is Mersin, which is composed of four municipalities and district governorates: Akdeniz, Mezitli, Toroslar and Yenişehir. Next largest is Tarsus, the birthplace of Paul the Apostle. The province is considered to be a part of the geographical, economical and cultural region of Çukurova, which covers the provinces of Mersin, Adana, Osmaniye and Hatay.