Willan Nunatak is an ice-free tipped peak rising to 449 m on the glacial

Glacier

A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

 divide between Huntress Glacier

Huntress Glacier

Huntress Glacier is a 7 km long and 3.7 km wide glacier on Livingston Island in the South Shetland Islands, Antarctica bounded by Friesland Ridge, Tangra Mountains to the southeast, Nesebar Gap, Pliska Ridge, Burdick Ridge and Willan Nunatak to the north, and Charrúa Gap and Napier Peak...

 and 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...

 on Hurd Peninsula

Hurd Peninsula

Hurd Peninsula is the land between South Bay and False Bay on the south coast of Livingston Island in the South Shetland Islands, Antarctica. The Spanish Antarctic base Juan Carlos I and the Bulgarian Antarctic base St. Kliment Ohridski are situated on the west coast of the peninsula.The feature...

 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. It is linked to Burdick South Peak

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...

 to the northeast by Willan Saddle

Willan Saddle

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...

 and, via Castillo Nunatak

Castillo Nunatak

Castillo Nunatak is a conspicuous rocky peak rising to 437 m on the glacial divide between Huntress Glacier and Balkan Snowfield on Hurd Peninsula in eastern Livingston Island in the South Shetland Islands, Antarctica. It is linked to Charrúa Ridge to the west Charrúa Gap and, via Willan Nunatak...

 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....

, to Charrúa Ridge

Charrúa Ridge

Charrúa Ridge is an ice-free rocky ridge rising to along the northeast coast of Johnsons Dock in Hurd Peninsula, Livingston Island, in the South Shetland Islands, Antarctica. It is narrow and precipitous, extending in a west-northwest to east-southeast direction, with triple heights of elevation...

 to the west.

The nunatak

Nunatak

A nunatak is an exposed, often rocky element of a ridge, mountain, or peak not covered with ice or snow within an ice field or glacier. The term is typically used in areas where a permanent ice sheet is present...

 is named after the British

United Kingdom

The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 geologist Robert Charles Richard Willan (b.1952) who has carried out field work in the area.

Location

The peak is located at 62°39′13.7"S 60°16′32"W which is 890 m east of Castillo Nunatak, 4.66 km east-southeast of Sinemorets Hill

Sinemorets Hill

Sinemorets Hill is the second most prominent in the chain of hills surmounting Bulgarian Beach in eastern Livingston Island in the South Shetland Islands, Antarctica....

, 2.36 km south-southwest of Burdick Peak

Burdick Peak

Burdick Peak rises southwest of Mount Bowles on Livingston Island, in the South Shetland Islands. It was named by the UK Antarctic Place-names Committee in 1958 for Christopher Burdick, Master of the American schooner Huntress of Nantucket, who visited the South Shetland Islands in 1820–21....

, 2.48 km west-southwest of Pliska Peak, 4.96 km west-northwest of Mount Friesland

Mount Friesland

Mount Friesland is the summit of Tangra Mountains on Livingston Island, in the South Shetland Islands, Antarctica. The peak is rising to 1700 m sharp, and is heavily glaciated and crevassed. Situated 12.5 km northeast of Barnard Point, 9.7 km east-southeast of St...

, 4.63 km north-northwest of Stambolov Crag

Stambolov Crag

Stambolov Crag rises to 820m in Friesland Ridge, Tangra Mountains, Livingston Island in the South Shetland Islands, Antarctica with steep snow free western slopes...

 and 3.21 km northeast of Napier Peak

Napier Peak

Napier Peak is the partly ice-free peak rising to 380 m on Hurd Peninsula, Livingston Island in the South Shetland Islands, Antarctica. It is linked to Charrúa Gap to the north by an 1.5 km ice-covered col, and by an ice-covered saddle to Mirador Hill to the south-southwest, and surmounts...

. British mapping in 1968, Spanish in 1991, and Bulgarian topographic survey in 1995/96 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