• Obelya Glacier
  Obelya Glacier
  Obelya Glacier is the 7.5 km long and 2.5 km wide glacier on the east side of southern Sentinel Range in Ellsworth Mountains, Antarctica, situated south of Remington Glacier, and flowing southeastwards along the southwest side of Johnson Spur and east of Mount Benson to join Thomas Glacier.The...
  
  , Sentinel Range
  Sentinel Range
  The Sentinel Range is a major mountain range situated northward of Minnesota Glacier and forming the northern half of the Ellsworth Mountains in Antarctica. The range trends NNW-SSE for about and is 24 to 48 km wide...
  
   78°37′00"S 84°23′00"W
• Obidim Peak
  Obidim Peak
  Obidim Peak is the rocky peak rising to 706 m in Erul Heights on Trinity Peninsula in Graham Land, Antarctica. It is surmounting Cugnot Ice Piedmont to the northeast.The peak is named after the settlement of Obidim in Southwestern Bulgaria.-Location:...
  
  , Trinity Peninsula
  Trinity Peninsula
  Trinity Peninsula is the extreme northern portion of the Antarctic Peninsula, extending northeastward for about from a line connecting Cape Kjellman and Cape Longing. Dating back more than a century, chartmakers used various names for this portion of the Antarctic peninsula, each name having some...
  
   63°41′54"S 58°19′30"W
• Oborishte Ridge
  Oborishte Ridge
  Oborishte Ridge has an elevation of 340 m in the southwest extremity of Breznik Heights, Greenwich Island in the South Shetland Islands, Antarctica. Extending 1.7 km along the southeast coast of Yankee Harbour and 950 m wide. Ice-free surface area...
  
  , Greenwich Island 62°32′05"S 59°45′04"W
• Obzor Hill
  Obzor Hill
  Obzor Hill is the hill rising to 490 m at the northeast tip of Trinity Peninsula, Antarctic Peninsula. Situated 2.46 km west-southwest of Cape Dubouzet, 1.18 km north of Mount Bransfield and 1.87 km northwest of Vishegrad Knoll. Surmounting Mott Snowfield to the west.The hill is named after the...
  
  , Trinity Peninsula
  Trinity Peninsula
  Trinity Peninsula is the extreme northern portion of the Antarctic Peninsula, extending northeastward for about from a line connecting Cape Kjellman and Cape Longing. Dating back more than a century, chartmakers used various names for this portion of the Antarctic peninsula, each name having some...
  
   63°16′00"S 57°05′43"W
• Odrin Cove
  Odrin Cove
  Odrin Cove is the 8.5 km wide cove indenting for 6.6 km Nordenskjöld Coast in Graham Land, Antarctica. It is entered southwest of Fothergill Point.The cove is named after the settlements of Odrintsi in Northeastern and Southern Bulgaria.-Maps:...
  
  , Nordenskjöld Coast
  Nordenskjold Coast
  Nordenskjold Coast is that portion of the east coast of the Antarctic Peninsula between Cape Longing and Cape Fairweather. The name was proposed in 1909 by Edwin Swift Balch, for Otto Nordenskiöld, Swedish geographer and leader of the Swedish Antarctic Expedition, 1901-04, who explored this coast...
  
   64°34′40"S 60°20′30"W
• Ogled Peak
  Ogled Peak
  Ogled Peak is the ice-covered peak rising to over 700 m in the north foothills of Louis-Philippe Plateau on Trinity Peninsula in Graham Land, Antarctica...
  
  , Trinity Peninsula
  Trinity Peninsula
  Trinity Peninsula is the extreme northern portion of the Antarctic Peninsula, extending northeastward for about from a line connecting Cape Kjellman and Cape Longing. Dating back more than a century, chartmakers used various names for this portion of the Antarctic peninsula, each name having some...
  
   63°30′20.5"S 58°18′18"W
• Ogosta Point
  Ogosta Point
  Ogosta Point is located in the central part of Zagore Beach on the east coast of False Bay, Livingston Island in the South Shetland Islands, Antarctica. Situated on Rozhen Peninsula 5.35 km north of Barnard Point, 4.4 km west of St. Methodius Peak and 3.45 km east of Castro Peak...
  
  , Livingston Island 62°42′37"S 60°19′54"W
• Ogoya Glacier
  Ogoya Glacier
  Ogoya Glacier is the 8 km long and 3 km wide glacier on Trinity Peninsula, Antarctic Peninsula. Situated west-northwest of Laclavère Plateau, northwest of Broad Valley and northeast of Sestrimo Glacier...
  
  , Trinity Peninsula
  Trinity Peninsula
  Trinity Peninsula is the extreme northern portion of the Antarctic Peninsula, extending northeastward for about from a line connecting Cape Kjellman and Cape Longing. Dating back more than a century, chartmakers used various names for this portion of the Antarctic peninsula, each name having some...
  
   63°27′00"S 58°01′00"W
• Ograzhden Cove
  Ograzhden Cove
  Ograzhden Cove is the 650 m wide cove indenting for 600 m the northwest coast of Ray Promontory, part of Svishtov Cove in Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica. The cove is entered between Essex Point and Kardzhali Point.The feature is "named after Ograzhden...
  
  , Livingston Island 62°34′44"S 61°10′41"W
• Ohoden Col
  Ohoden Col
  Ohoden Col is the ice-covered col of elevation over 900 m extending 950 m on Trinity Peninsula in Graham Land, Antarctica, which is linking Ivory Pinnacles to the north to Detroit Plateau to the south. It is surmounting Pettus Glacier to the east....
  
  , Trinity Peninsula
  Trinity Peninsula
  Trinity Peninsula is the extreme northern portion of the Antarctic Peninsula, extending northeastward for about from a line connecting Cape Kjellman and Cape Longing. Dating back more than a century, chartmakers used various names for this portion of the Antarctic peninsula, each name having some...
  
   63°50′31"S 59°11′35"W
• Okol Rocks
  Okol Rocks
  Okol Rocks is a group of rocks in the north of Aitcho Islands group on the west side of English Strait in the South Shetland Islands, Antarctica...
  
  , Aitcho Islands
  Aitcho Islands (South Shetland Islands)
  The Aitcho Islands are a group of minor islands on the west side of the north entrance to English Strait separating Greenwich Island and Robert Island in the South Shetland Islands, Antarctica, which are situated between Dee Island to the south and Table Island to the north...
  
   62°22′19"S 59°45′42"W
• Omurtag Pass
  Omurtag Pass
  Omurtag Pass is a 720 m high pass between Mount Bowles and Ticha Peak in Bowles Ridge, Livingston Island in the South Shetland Islands, Antarctica and is part of an overland route between the Wörner Gap area and upper Kaliakra Glacier...
  
  , Livingston Island 62°37′03.2"S 60°11′27.1"W
• Ongal Peak
  Ongal Peak
  Ongal Peak is a sharp glaciated peak on the Levski Ridge, Tangra Mountains, Livingston Island in the South Shetland Islands, Antarctica. The peak was first ascended on 21 December 2004 by the Bulgarian Lyubomir Ivanov from Camp Academia...
  
  , Livingston Island 62°39′31"S 60°07′03"W
• Onogur Islands
  Onogur Islands
  Onogur Islands is the group of nine islands and some islets and rocks adjacent to the northwest coast of Robert Island in the South Shetland Islands, Antarctica. Situated between Carlota Cove to the southwest and Clothier Harbour to the northeast, and southeast of Cornwall Island...
  
  , Robert Island
  Robert Island (South Shetland Islands)
  Robert Island or Mitchells Island or Polotsk Island or Roberts Island is an island long and wide, situated between Nelson Island and Greenwich Island in the South Shetland Islands. Robert Island is located at . Surface area...
  
   62°21′07"S 59°41′00"W
• Opaka Rocks
  Opaka Rocks
  Opaka Rocks are a group of rocks with the principal one situated north of Henfield Rock, east of Pordim Islands and 4.79 km west by south of Mellona Rocks off the north coast of Robert Island, South Shetland Islands. Bulgarian early early mapping in 2009...
  
  , Robert Island 62°18′19"S 59°35′10"W
• Opalchenie Peak
  Opalchenie Peak
  Opalchenie Peak is the peak rising to 4500 m at the south extremity of Vinson Plateau, Sentinel Range in Ellsworth Mountains, Antarctica. It has precipitous and partly ice-free south slopes, and is of low prominence except to the south, where two parallel ridges descend steeply southwestwards...
  
  , Vinson Massif
  Vinson Massif
  Vinson Massif is the highest mountain of Antarctica, lying in the Sentinel Range of the Ellsworth Mountains, which stand above the Ronne Ice Shelf near the base of the Antarctic Peninsula. The massif is located about from the South Pole and is about long and wide. At the highest point is Mount...
  
   78°34′02"S 85°34′53"W
• Oreshak Peak
  Oreshak Peak
  Oreshak Peak is the peak rising to 2800 m in the Bangey Heights of north-central Sentinel Range in Ellsworth Mountains, Antarctica. It is surmounting Patleyna Glacier to the south-southwest and Embree Glacier to the west and north....
  
  , Sentinel Range
  Sentinel Range
  The Sentinel Range is a major mountain range situated northward of Minnesota Glacier and forming the northern half of the Ellsworth Mountains in Antarctica. The range trends NNW-SSE for about and is 24 to 48 km wide...
  
   78°02′24"S 85°44′06"W
• Organa Peak
  Organa Peak
  Organa Peak is a peak rising to 1270 m in Imeon Range on Smith Island, South Shetland Islands. Situated 6.8 km northeast of Cape James, and 1.85 km south-southwest of Riggs Peak. Overlooking Letnitsa Glacier to the east and southeast, and Kremena Ice Piedmont to the south. Bulgarian...
  
  , Smith Island
  Smith Island (South Shetland Islands)
  Smith Island is long and wide, lying west of Deception Island in the South Shetland Islands of the British Antarctic Territory. Surface area ....
  
   63°03′02"S 62°37′47"W
• Orpheus Gate
  Orpheus Gate
  Orpheus Gate is a 548 m high, 380 m wide, pass in eastern Livingston Island in the South Shetland Islands, Antarctica bounded by Pliska Ridge to the southeast and Burdick Ridge to the northwest, Huntress Glacier to the southwest and Perunika Glacier to the northeast.The pass forms part of the...
  
  , Livingston Island 62°38′35.2"S 60°14′31.5"W
• Orsoya Rocks
  Orsoya Rocks
  Orsoya Rocks is the group of rocks off the north coast of Robert Island in the South Shetland Islands, Antarctica, situated west-northwest of Mellona Rocks, north-northeast of Milev Rocks and east-northeast of Opaka Rocks, and extending 650 m in northwest-southeast direction and 500 m in...
  
  , Robert Island
  Robert Island (South Shetland Islands)
  Robert Island or Mitchells Island or Polotsk Island or Roberts Island is an island long and wide, situated between Nelson Island and Greenwich Island in the South Shetland Islands. Robert Island is located at . Surface area...
  
   62°17′39"S 59°31′32"W
• Oryahovo Heights
  Oryahovo Heights
  Oryahovo Heights are the ice-covered heights of elevation 340 m extending 6 km in north-south direction in central and eastern Ioannes Paulus II Peninsula, Livingston Island in the South Shetland Islands, Antarctica...
  
  , Livingston Island 62°32′09"S 60°45′00"W
• Osmar Strait
  Osmar Strait
  Osmar Strait is the wide strait in the South Shetland Islands, Antarctica between Smith Island to the northwest and Low Island to the southeast.The strait is named after the settlement of Osmar in northeastern Bulgaria.-Location:...
  
  , South Shetland Islands
  South Shetland Islands
  The South Shetland Islands are a group of Antarctic islands, lying about north of the Antarctic Peninsula, with a total area of . By the Antarctic Treaty of 1959, the Islands' sovereignty is neither recognized nor disputed by the signatories and they are free for use by any signatory for...
  
   63°09′00"S 62°24′00"W
• Osogovo Bay
  Osogovo Bay
  Osogovo Bay , "named after the Osogovo region in western Bulgaria", is bounded by the south coast of Rugged Island, by Astor Island, and by the west coast of the Byers Peninsula south of Laager Point, Livingston Island in the South Shetland Islands, Antarctica.By sea, it is entered between Benson...
  
  , Livingston Island 62°39′05"S 61°11′42"W
• Ovech Glacier
  Ovech Glacier
  Ovech Glacier is a 3.5 km long glacier on Smith Island, South Shetland Islands draining the southeast slopes of Imeon Range southeast of Drinov Peak and east of Popovo Saddle and Sevlievski Peak. Flowing east-southeastward into Boyd Strait. Bulgarian early mapping in 2009. Named after the...
  
  , Smith Island
  Smith Island (South Shetland Islands)
  Smith Island is long and wide, lying west of Deception Island in the South Shetland Islands of the British Antarctic Territory. Surface area ....
  
  62°57′42"S 62°26′40"W

External links

• Bulgarian Antarctic Gazetteer
• SCAR Composite Gazetteer of Antarctica