Belasica or Kerkini or Belles is a mountain range in the region of Macedonia in Southeastern Europe, shared by northwestern Greece (about 45%), southeastern Republic of Macedonia (35%) and southwestern Bulgaria (20%).
The mountain range is about 60 km (37.28 mi) long and 7 to 9 km (4.35 to 5.59 mi) wide and is situated just northeast of Dojran Lake. The highest point is Radomir (Kalabak) at 2,029 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.
The old neighborhood of Yavornica is like an open-air museum. People still live in the very old traditional houses aged 300-400 years. The atmosphere is unique and very real. This is one of the few remaining in Bulgaria places, where the traditional way of living is still preserved, without any external preservation or restoration. A real living society of Bulgarians, muslims and gypsies, all living together in peace.
Belasitsa Nature Park covers the northern slopes of Belasitsa Mountain in the Southwest Region of Bulgaria. The total area of the park is 117 km² (45 sq mi). Belasitsa is part of the European ecological network NATURA 2000 and is managed by the Belasitsa Nature Park Directorate
At present, around 1500 plant species have been found in Belasitsa Nature Park, including Bulgarian and Balkan endemites, species protected by the Law on Biological Diversity, species included in the Convention on International Trade in Endangered Species of Wild Fauna and Flora and species included in the Red Book of Bulgaria. The Fauna in Belasitsa are affected by two main attributes of the mountain: location and altitude. Belasitsa Mountain is in the South-westernmost part of Bulgaria and is part of the North-end zone of the subtropical area.
Ograzhden (Ograjden) is a mountain shared by southeastern Republic of Macedonia and southwestern Bulgaria, part of the Belasitsa-Osogovo group. It is located north of Belasitsa, northeast of the Macedonian town of Strumica and northwest of the Bulgarian town of Petrich. The highest peak of the mountain is located in the Republic of Macedonia, Ograzhdenec (Огражденец) at 1,744 m, while the highest in Bulgaria is Bilska Chuka (Билска чука) at 1,644 m.Ograzhden Cove in Livingston Island in the South Shetland Islands, Antarctica is named after Ograzhden