Belasica, Belles or Kerkini, is a mountain range in the region of Macedonia in Southeastern Europe, shared by northeastern Greece, southeastern North Macedonia and southwestern Bulgaria. The mountain range is fault-block mountain about 60 km long and 7 to 9 km wide and is situated just northeast of Dojran Lake. The highest point is Radomir at 2,031 m, w…Belasica, Belles or Kerkini, is a mountain range in the region of Macedonia in Southeastern Europe, shared by northeastern Greece, southeastern North Macedonia and southwestern Bulgaria. The mountain range is fault-block mountain about 60 km long and 7 to 9 km wide and is situated just northeast of Dojran Lake. The highest point is Radomir at 2,031 m, with elevation otherwise ranging between 300 and 1900 m above sea level. The borders of all three countries meet at Tumba Peak. The climate in the area shows strong Mediterranean influence.