Pirdop Gate

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Location of Bowles Ridge on Livingston Island in the South Shetland Islands. Bowles-Ridge-location-map.PNG
Location of Bowles Ridge on Livingston Island in the South Shetland Islands.
Pirdop Gate from Komini Peak. Pirdop-Livingston.jpg
Pirdop Gate from Komini Peak.
Topographic map of Livingston Island and Smith Island. Livingston-Island-Map-2010-15.png
Topographic map of Livingston Island and Smith Island.
Tangra 2004/05 survey route including Pirdop Gate. Tangra-2004-5-Survey-Route.png
Tangra 2004/05 survey route including Pirdop Gate.

Pirdop Gate (Pirdopska Porta \pir-'dop-ska 'por-ta\) is a 300-m wide pass between Maritsa Peak and Atanasoff Nunatak in eastern Bowles Ridge, Livingston Island in the South Shetland Islands, Antarctica. It has an elevation of 376 m at its northern entrance from Struma Glacier, and 261 m at the southern entrance from Huron Glacier. It forms part of an overland route between middle Huron Glacier and upper Kaliakra Glacier. The pass was first crossed by the Bulgarians Lyubomir Ivanov and Doychin Vasilev from Camp Academia on 28 December 2004. Named after the town of Pirdop in Central Bulgaria.

Maritsa Peak mountain in Livingston Island, South Shetland Islands, Antarctica

Maritsa Peak rises to 560 m in eastern Bowles Ridge on Livingston Island in the South Shetland Islands, Antarctica. It has precipitous rocky south slopes, and is situated on the west side of Pirdop Gate, surmounting Huron Glacier to the south and Struma Glacier to the north. The peak is "named after the Maritsa River in Bulgaria."

Atanasoff Nunatak

Atanasoff Nunatak is a nunatak, a sharp peak rising to 523 m 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”.

Bowles Ridge

Bowles Ridge is the central ridge of eastern Livingston Island. The ridge extends 6.5 km in the east-west direction and is 1.5 km wide. The summit of the ridge is Mount Bowles which rises to 822m and is located 9.77 km northwest of Great Needle Peak, 6.08 km north by west of Mount Friesland, 8.77 km east-northeast of St. Kliment Ohridski base and 9.25 km south by west of Miziya Peak.

Contents

Location

The pass is located at 62°36′54″S60°07′40″W / 62.61500°S 60.12778°W / -62.61500; -60.12778 Coordinates: 62°36′54″S60°07′40″W / 62.61500°S 60.12778°W / -62.61500; -60.12778 , which is 6.82 km east-northeast of Orpheus Gate, 3.25 km east of Omurtag Pass, 2.16 km southeast of Yankov Gap, 5.86 km northwest of Karnobat Pass and 3.44 km north-northeast of Lozen Saddle (Bulgarian topographic survey Tangra 2004/05, and mapping in 2005 and 2009).

Geographic coordinate system Coordinate system

A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.

Orpheus Gate

Orpheus Gate, also Orpheus Pass, is the 548 m high and 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.

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. The pass is named after Khan Omurtag of Bulgaria, 814-831 AD.

Maps

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Related Research Articles

Debelt Glacier glacier in Antarctica

The Debelt Glacier on Varna Peninsula, Livingston Island in the South Shetland Islands, Antarctica is situated southeast of Rose Valley Glacier and northeast of Panega Glacier. It drains the southeastern slopes of Vidin Heights and flows into Moon Bay between Edinburgh Hill and Helis Nunatak. The glacier extends three km in an east-west direction, and 1.5 km in north-south direction.

Kaliakra Glacier glacier in Antarctica

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.

Karnobat Pass

Karnobat Pass is a 220 m wide and 720 m high pass in Levski Ridge in Tangra Mountains, Livingston Island in the South Shetland Islands, Antarctica. It is bounded by Helmet Peak to the south and Intuition Peak to the north, and is situated 5.46 km east of Lozen Saddle and 5.86 km southeast of Pirdop Gate. The pass provides overland access from Devnya Valley to Iskar Glacier area. It was named after the town of Karnobat in eastern Bulgaria.

Lozen Saddle

Lozen Saddle is a 437 m high saddle situated between Lozen Nunatak and Zograf Peak in Tangra Mountains, eastern Livingston Island in the South Shetland Islands, Antarctica which provides overland access from the Wörner Gap area to the Shipka Valley. The saddle was first crossed by the Bulgarian Lyubomir Ivanov from Camp Academia on 17 December 2004, and takes its name from the adjacent Lozen Nunatak.

Montana Bluff

Montana Bluff is an ice-covered peak rising to 670 m at the end of a side ridge running south-southeast from Ticha Peak in central Bowles Ridge, Livingston Island. Surmounting Perunika Glacier to the west and southwest, and Huron Glacier to the east and southeast. It is named after the city of Montana in Northwestern Bulgaria.

Panega Glacier glacier in Antarctica

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 glacier in Antarctica

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.

Rezen Saddle

Rezen Saddle is a geographical feature on Livingston Island in the South Shetland Islands, Antarctica. The 600 m long horseshoe-shaped flat saddle of elevation 420 m lies between Rezen Knoll and Burdick Ridge in eastern Livingston Island, affording overland access from Balkan Snowfield to upper Perunika Glacier and Bowles Ridge area.

Rose Valley Glacier glacier in Antarctica

Rose Valley Glacier is a glacier on Varna Peninsula, eastern Livingston Island in the South Shetland Islands, Antarctica situated northeast of Saedinenie Snowfield, northwest of Debelt Glacier and north of Panega Glacier. It extends 5.2 km in southeast-northwest direction and 3.7 km in southwest-northeast direction, and drains the northeast slopes of Vidin Heights to flow into Lister Cove and McFarlane Strait between Pomorie Point and Inott Point.

Struma Glacier glacier in Antarctica

Struma Glacier is a glacier in eastern Livingston Island in the South Shetland Islands, Antarctica situated south of lower Kaliakra Glacier and north of Huron Glacier. Bounded by Melnik Ridge to the north, Yankov Gap to the west and Bowles Ridge to the south, it is 4.8 km long and 1.5 km wide, and flows eastwards into Moon Bay south of Sindel Point and north of Elemag Point.

Wulfila Glacier glacier in Antarctica

Wulfila Glacier is located on the southern slopes of Breznik Heights, Greenwich Island in the South Shetland Islands, Antarctica, south-southwest of Solis Glacier and west of Zheravna Glacier. It is bounded by Oborishte Ridge to the northwest, Nevlya Peak to the north, Terter Peak and Razgrad Peak to the northeast, and Ephraim Bluff to the southeast. The glacier extends 3 km in northwest-southeast direction and 2 km in northeast-southwest direction, draining southwestwards into McFarlane Strait between Ephraim Bluff and the base of Provadiya Hook.

Yankov Gap

Yankov Gap is an ice-covered saddle linking Melnik Ridge and Bowles Ridge in eastern Livingston Island in the South Shetland Islands, Antarctica. The gap is at an elevation of 575 m and extends 1 km in the north-south direction from Samokov Knoll in Melnik Ridge to Asparuh Peak in Bowles Ridge. Yankov Gap is part of the divide between the glacial catchments of the head of Kaliakra Glacier to the west and Struma Glacier to the east.

Zlatograd Rock mountain in Livingston Island, South Shetland Islands, Antarctica

Zlatograd Rock is a rocky 240 m peak forming the eastern extremity of Bowles Ridge, Livingston Island in the South Shetland Islands, Antarctica. The peak overlooks Struma Glacier to the northwest and Huron Glacier to the southeast. It is named after the town of Zlatograd in the Rhodope Mountains, Southern Bulgaria.

Huron Glacier glacial flow on Livingston Island in the South Shetland Islands, Antarctica

Huron Glacier is a 4.8 nautical miles } long and 2.2 nautical miles wide glacial flow on Livingston Island in the South Shetland Islands of Antarctica, situated east of Perunika Glacier, southeast of Kaliakra Glacier, south of Struma Glacier, west-northwest of Iskar Glacier and northeast of Huntress Glacier. It is bounded by Bowles Ridge to the north, Wörner Gap to the west and the Tangra Mountains to the south, receiving ice influx from several tributary glaciers draining the mountain's northern slopes between Mount Friesland and Helmet Peak, and running east-northeastwards to empty into Moon Bay south of Elemag Point and north of Yana Point. Camp Academia is situated on upper Huron Glacier, in the northwestern foothills of Zograf Peak.

Yana Point

Yana Point is the point forming the west side of the entrance to Bruix Cove in eastern Livingston Island in the South Shetland Islands, Antarctica. The point separates the glacier termini of Huron Glacier to the northwest and Iskar Glacier to the southeast. The feature is named after the settlement of Yana in western Bulgaria.

References

Antarctic Place-names Commission

The Antarctic Place-names Commission was established by the Bulgarian Antarctic Institute in 1994, and since 2001 has been a body affiliated with the Ministry of Foreign Affairs of Bulgaria.


This article includes information from the Antarctic Place-names Commission of Bulgaria which is used with permission.