is a village of Kırklareli Province in western Turkey and one of the three land border crossing points between Bulgaria and Turkey.

Geography
The village is located in Strandzha mountains, 20 km north of the centre of Kırklareli, near the border with Bulgaria.

History
In the 19th century Dereköy was a Bulgarian village in the kaza of Kırklareli which was in turn in the Vilayet of Edirne. In 1873, the village consisted of 360 households with 1684 Bulgarians.[2] After the Russo-Ottoman War of 1877-1878, first families from Dereköy migrated to Razgrad and Tutrakan to the newly sovereign Bulgaria. According to statistics provided by Ljubomir Miletitsch, Dereköy had about 150 households and 634 inhabitants in 1900, all of whom were Christian Bulgarians.[3]

After the outbreak of the Balkan War in 1912, 16 volunteers from Dereköy fought in Macedonia-Edirne-volunteer corps of the Bulgarian army.[4] After the outbreak of the Second Balkan War, when the Turkish army recaptured eastern Thrace, the whole Bulgarian population of Dereköy escaped to Bulgaria.

The Border
The border crossing point lies about 11 km north west of the village centre. The Bulgarian counterpart is Malko Tarnovo. It was opened in 1970. It occupies a land size of 17.811 m2. Modernization of the facilities is still ongoing.[5]

The Marmara Region (Turkish: Marmara Bölgesi) is a geographical region of Turkey.

Located in northwestern Turkey, it is bordered by Greece and the Aegean Sea to the west, Bulgaria and the Black Sea to the north, the Black Sea Region to the east, the Central Anatolia Region to the southeast and the Aegean Region to the south. At the center of the region is the Sea of Marmara, which gives the region its name. The largest city in the region is Istanbul.

Among the seven geographical regions, the Marmara Region has the second-smallest area, yet the largest population; it is the most densely populated region in the country.