Willan Saddle
Encyclopedia
Willan Saddle is a flat, crescent-shaped and ice-covered saddle extending 1 km in the northeast-southwest direction between Burdick South Peak
and Willan Nunatak
in eastern Livingston Island in the South Shetland Islands
, Antarctica. The saddle has an elevation of 400 m and is part of the overland route between Balkan Snowfield
and Charrúa Gap
in the west and Orpheus Gate
in the east, thus providing access from the Bulgarian Base
and the Spanish Base
to the interior of eastern Livingston Island.
The feature takes its name from the adjacent Willan Nunatak.
Burdick South Peak
Burdick South Peak rises 544 m and is formed by an offshoot extending 1 km west-southwestwards from the southeastern extremity of Burdick Ridge in eastern Livingston Island. The peak is narrow, with steep and partly ice-free southern and northern slopes...
and Willan Nunatak
Willan Nunatak
Willan Nunatak is an ice-free tipped peak rising to 449 m on the glacial divide between Huntress Glacier and Balkan Snowfield on Hurd Peninsula in eastern Livingston Island in the South Shetland Islands, Antarctica...
in eastern Livingston Island in the 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...
, Antarctica. The saddle has an elevation of 400 m and is part of the overland route between Balkan Snowfield
Balkan Snowfield
Balkan Snowfield is an ice-covered plateau ranging from 150 to 280 m in eastern Livingston Island in the South Shetland Islands, Western Antarctica...
and Charrúa Gap
Charrúa Gap
Charrúa Gap is a flat ice-covered saddle extending 2.2 km in east-west direction between Castillo Nunatak and Charrúa Ridge on Hurd Peninsula, eastern Livingston Island at an elevation of 275 m....
in the west and 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...
in the east, thus providing access from the Bulgarian Base
St. Kliment Ohridski Base
St. Kliment Ohridski Base is a Bulgarian Antarctic base on Livingston Island in the South Shetland Islands.The base, originally known as Sofia University Refuge, was named in 1993 "for St...
and the Spanish Base
Juan Carlos I Base
Juan Carlos I Antarctic Base, named after the king of Spain, Juan Carlos I, is a seasonal scientific station operated by Spain, opened in January 1988...
to the interior of eastern Livingston Island.
The feature takes its name from the adjacent Willan Nunatak.
Location
The saddle's midpoint is located at 62°38′56.1"S 60°16′27.4"W (Mapped in detail by the Spanish Servicio Geográfico del Ejército in 1991, Bulgarian topographic surveys in 1995/96 and 2004/05, and mapping in 1996, 2005 and 2009).Maps
- Isla Livingston: Península Hurd. Mapa topográfico de escala 1:25 000. Madrid: Servicio Geográfico del Ejército, 1991.
- L.L. Ivanov. Livingston Island: Central-Eastern Region. Scale 1:25000 topographic map. Sofia: Antarctic Place-names Commission of Bulgaria, 1996.
- L.L. Ivanov et al. Antarctica: Livingston Island and Greenwich Island, South Shetland Islands. Scale 1:100000 topographic map. Sofia: Antarctic Place-names Commission of Bulgaria, 2005.
- L.L. Ivanov. Antarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands. Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2009. ISBN 978-954-92032-6-4