Perperek Knoll (Perperekska Mogila \per-pe-'rek-ska mo-'gi-la\) is a 360 m peak in Vidin Heights on Varna Peninsula, Livingston Island in the South Shetland Islands, Antarctica. Partly ice-free southeast slopes. Surmounting Kaliakra Glacier to the west and south. The peak is named after the settlement of Perperek [1] in the Rhodope Mountains hosting the remains of the Thracian holy town of Perperikon. [2]
The knoll is located at 62°32′57″S60°07′41″W / 62.54917°S 60.12806°W Coordinates: 62°32′57″S60°07′41″W / 62.54917°S 60.12806°W which is 5.77 km north of Sliven Peak, 4.51 km northeast of Leslie Hill and 2.41 km southeast of Miziya Peak (Bulgarian topographic survey Tangra 2004/05, and mapping in 2005 and 2009).
Aheloy Nunatak is a rocky 390m peak in the upper Huron Glacier in Livingston Island. The peak forms the northeast extremity of a minor ridge which also features Erma Knoll and Lozen Nunatak, and is linked to Zograf Peak by Lozen Saddle. The peak was first visited on 31 December 2004 by the Bulgarian Lyubomir Ivanov from Camp Academia, and was mapped in the Bulgarian Tangra 2004/05 topographic survey. The peak was named after the Black Sea town of Aheloy, Bulgaria.
Atanasoff Nunatak is a nunatak, a sharp peak rising to 523 m (1,716 ft) in the east extremity of Bowles Ridge, Livingston Island, Antarctica. The peak surmounts Huron Glacier to the south and east, and Struma Glacier to the north. The peak is “named in honour of the Bulgarian American John Atanasoff (1903–1995) who constructed the first electronic digital computer”.
Boyana Glacier in Levski Ridge, Tangra Mountains on Livingston Island, South Shetland Islands in Antarctica is situated southeast of Macy Glacier and west-southwest of Srebarna Glacier. It is bounded by Vazov Rock on the west, St. Naum Peak, Starosel Gate, Silistra Knoll and Kotel Gap on the north, and Christoff Cliff on the east. The glacier extends 3 km in east-west direction and 1.6 km in north-south direction, and flows southeastward into the Bransfield Strait between Vazov Point and Aytos Point.
Erma Knoll is a 412m peak in upper Huron Glacier, Livingston Island. The peak was first visited on 17 December 2004 by the Bulgarian Lyubomir Ivanov from Camp Academia, and was mapped by Bulgaria in 2005 and 2009 from the Tangra 2004/05 topographic survey. The knoll is named after Erma River in western Bulgaria.
Kaliakra Glacier is a glacier in northeastern Livingston Island, Antarctica extending 3.8 nautical miles in east-west direction and 4.3 nautical miles in north-south direction, and situated southeast of Saedinenie Snowfield, southwest of Panega Glacier, north of Struma Glacier and upper Huron Glacier, and northeast of Perunika Glacier. It is bounded by Melnik Ridge and Bowles Ridge to the south, by Hemus Peak, Gurev Gap, Gleaner Heights, Elhovo Gap, Leslie Hill, Leslie Gap and Radnevo Peak to the west, and Miziya Peak and Samuel Peak to the north. The glacier drains eastwards into Moon Bay south of Perperek Knoll and north of Sindel Point.
Lyaskovets Peak is the easternmost peak of Friesland Ridge in the Tangra Mountains, eastern Livingston Island and has an elevation of 1,473 m. The peak is bounded by Catalunyan Saddle on the west and Shipka Saddle on the east, and is heavily glaciated and crevassed, with precipitous western, southern and eastern slopes. It surmounts Huron Glacier to the northwest and northeast, and Macy Glacier and Brunow Bay area to the south. Its northern offshoot forms Zograf Peak, and is linked to Lozen Nunatak, Erma Knoll and Aheloy Nunatak in Huron Glacier.
Nestinari Nunataks are a pair of rocky peaks of elevation 470 m and 520 m in middle Huron Glacier, Livingston Island in the South Shetland Islands, Antarctica. Situated in the north foothills of Tangra Mountains, 210 m away from each other.
Ongal Peak is a sharp glaciated peak rising to 1151 m on Levski Ridge of Tangra Mountains, Livingston Island in the South Shetland Islands, Antarctica. It surmounts Shipka Valley on the north-northwest, and Huron Glacier and its tributaries on the north and northeast.
Panega Glacier on Varna Peninsula, Livingston Island in the South Shetland Islands, Antarctica is situated southeast of the northeastern portion of Saedinenie Snowfield, south of Rose Valley Glacier, southwest of Debelt Glacier and north of lower Kaliakra Glacier. It drains the southeast slopes of Vidin Heights and flows into Moon Bay between Helis Nunatak and Perperek Knoll. The glacier extends 2 nautical miles in the southeast-northwest direction, and 1.6 nautical miles in the southwest-northeast direction. It is named after Zlatna Panega River in northern Bulgaria.
Perunika Glacier is an 8 km long and 3 km wide (average) roughly crescent-shaped glacier in eastern Livingston Island in the South Shetland Islands, Antarctica situated east of Pimpirev Glacier, south of Saedinenie Snowfield, southwest of Kaliakra Glacier, west of Huron Glacier, and north of Balkan Snowfield and the head of Huntress Glacier.
Sakar Peak is a peak of elevation 355 m in Vidin Heights on Varna Peninsula, Livingston Island in the South Shetland Islands, Antarctica. Partly ice-free southeast slopes. Surmounting Panega Glacier to the north and east, and the lower course of Kaliakra Glacier to the south.
Serdica Peak rises to approximately 1,200m in Levski Ridge, Tangra Mountains, Livingston Island in the South Shetland Islands, Antarctica. Linked to Silistra Knoll to the west-southwest by Kotel Gap. Surmounting Macy Glacier to the west, Boyana Glacier to the southwest, and Srebarna Glacier to the southeast.
Sliven Peak rises to 530 m in the east extremity of Melnik Ridge, Livingston Island in the South Shetland Islands, Antarctica. The peak has precipitous rocky southern slopes and partly ice-free northern slopes, overlooking Kaliakra Glacier to the northwest and Struma Glacier to the south and east.
St. Ivan Rilski Col is an ice-covered col linking the Great Needle Peak and Levski Peak in Levski Ridge, Tangra Mountains, eastern Livingston Island in the South Shetland Islands, Antarctica.
Svoge Knoll is an ice-covered peak rising to 560 m in Bowles Ridge, Livingston Island in the South Shetland Islands, Antarctica. Surmounting Perunika Glacier to the south and west.
Tervel Peak is a triple peak rising to 810 m in Friesland Ridge, Tangra Mountains on Livingston Island in the South Shetland Islands, Antarctica overlooking Peshtera Glacier and Zagore Beach to the northwest, and Charity Glacier to the southwest. Linked by Pleven Saddle to MacKay Peak in the west-southwest.
Zograf Peak rises to 1,010 m (3,310 ft) at the northeast extremity of Friesland Ridge in Tangra Mountains, Livingston Island in the South Shetland Islands, Antarctica. The peak is heavily glaciated and crevassed, with precipitous and partly ice-free northern slopes. The peak surmounts Huron Glacier to the north and Shipka Valley to the east, and is accessible via the saddle of elevation 975 m linking it to the north rib of Lyaskovets Peak. The peak is linked to the northeast by Lozen Saddle to Lozen Nunatak, Erma Knoll and Aheloy Nunatak.
Great Needle Peak is the summit of the central Levski Ridge in Tangra Mountains on Livingston Island, Antarctica. Rising to 1,679.5 m, it is the third highest peak of both the mountains and the island after Mount Friesland (1700.2 m) and St. Boris Peak (1685 m). Great Needle Peak surmounts Huron Glacier and its tributary draining Devnya Valley to the north, Magura Glacier to the east, Srebarna Glacier to the south, and Macy Glacier to the southwest.
Helmet Peak is a conspicuous peak rising to 1,254 metres (4,114 ft) in Levski Ridge, Tangra Mountains on Livingston Island in the South Shetland Islands, Antarctica just southward of the mouth of Huron Glacier. It is bounded by Devnya Valley to the west, Iskar Glacier to the northeast, and Magura Glacier to the southeast, and has precipitous west and east slopes. It was named by Discovery Investigations personnel during the period 1926–32.
Sofia Peak is the ice-covered peak rising to 1655 m in Levski Ridge, central Tangra Mountains on Livingston Island in the South Shetland Islands, Antarctica, 470 m northwest of the summit point of Great Needle Peak with which it forms a twin peak. The feature is named after the capital city of Bulgaria.
This article includes information from the Antarctic Place-names Commission of Bulgaria which is used with permission.
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