Rusokastro Rock (, âÂÂSkala Rusokastroâ ska-'la ru-so-'kas-tro) is a twin rock at the north entrance to McFarlane Strait in the South Shetland Islands, Antarctica extending in northwestâÂÂsoutheast direction and wide, with its two parts separated by a wide passage. It is situated northeast of Pyramid Island, northeast of Williams Point on Livingston Island, and northwest of Duff Point on Greenwich Island. The area was visited by early 19th century sealers.
The rock is named after the settlement and medieval fortress of Rusokastro in southeastern Bulgaria.
Rusokastro Rock is located at (Bulgarian mapping in 2009).
L.L. Ivanov. Antarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands. Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2009.