Sir Edward Sabine (1788-1883), English astronomer and geodesist, was a member of the committee which planned the 1829 voyage of Foster in the Chanticleer.

Named after Tsarevets Hill in the city of Veliko Tarnovo, the seat of the Bulgarian royal court in the 12th-14th centuries.

An ice-covered col of elevation 1,568 metres (5,144 ft)[3] high, extending 1.6 kilometres (0.99 mi) between Korten Ridge to the northwest and Detroit Plateau to the SE.

Named for the Bulgarian-American pioneer of aviation Assen Jordanoff (1896-1967) who built the first Bulgarian airplane in 1915 and took part in the construction of B-17 and other US planes.

The narrow rocky point on Davis Coast in Graham Land projecting 650 metres (2,130 ft) high northwards into Jordanoff Bay.

Named for the Bulgarian pioneer of aviation Prodan Tarakchiev (1885-1969) who, while on a joint combat air mission with Radul Milkov during the First Balkan War, used the first air-dropped bombs on October 16, 1912.