The Ludogorie or Deliorman, is a region in northeastern Bulgaria stretching over the plateau of the same name. Major cities in the region are Targovishte, Razgrad, Dulovo, Novi Pazar, Pliska, Preslav, and Isperih. Part of the Danubian Plain, the region is hilly in the east, reaching up to 485.70 metres (1,593.5 ft) in height near the village of Samuil, but merges with the plains of Dobruja and the Danube to the north, with the lowest point near Yuper. The region is bordered to the west by the Provadiya River and the Beli Lom; to the east it transitions into the Dobruja plateau. The region has a significant ethnic Turkish minority.