Catalunyan Saddle in the context of "Perunika Glacier"

Mount Friesland is a mountain rising to 1,700.2 metres (5,578 ft) in the homonymous Friesland Ridge, one of the two summits of Tangra Mountains and Livingston Island in the South Shetland Islands, Antarctica along with neighbouring St. Boris Peak. Its north rib is connected to Pliska Ridge by Nesebar Gap on the west, and to Bowles Ridge by Wörner Gap on the north. On the east, Mount Friesland is connected to Presian Ridge and further on to Catalunyan Saddle and Lyaskovets Peak. On the south-southwest, it is connected by a short saddle to ‘The Synagogue’, a sharp-peaked rock-cored ice formation abutting St. Boris Peak. The peak is heavily glaciated and crevassed, surmounting Huntress Glacier to the west, Perunika Glacier to the north-northwest, Huron Glacier to the northeast and Macy Glacier to the southeast. The local weather is notoriously unpleasant and challenging; according to the seasoned Antarctic mountaineer Damien Gildea who climbed in the area, "just about the worst weather in the world".

Lyaskovets Peak (Bulgarian: връх Лясковец, romanized: vrah Lyaskovets, IPA: [ˈvrɤx ˈʎaskovɛt͡s]) is the easternmost peak of Friesland Ridge in the Tangra Mountains, eastern Livingston Island and has an elevation of 1,473 m. The peak is bounded by Catalunyan Saddle on the west and Shipka Saddle on the east, and is heavily glaciated and crevassed, with precipitous western, southern and eastern slopes. It surmounts Huron Glacier to the northwest and northeast, and Macy Glacier and Brunow Bay area to the south. Its northern offshoot forms Zograf Peak, and is linked to Lozen Nunatak, Erma Knoll and Aheloy Nunatak in Huron Glacier.

The peak is named after Lyaskovets, a town in central northern Bulgaria.

Macy Glacier is a 3.7 nautical miles (6.9 km; 4.3 mi) long and 1.4 nautical miles (2.6 km; 1.6 mi) crescent-shaped glacier on the southern slopes of the Tangra Mountains, Livingston Island in the South Shetland Islands, Antarctica. The glacier is bounded by Friesland Ridge to the northwest, Levski Ridge to the northeast and Peshev Ridge to the southeast, and flows southwestwards into the head of Brunow Bay.

The feature was named by the UK Antarctic Place-names Committee in 1958 for Robert Macy, Master of the brig Aurora, one of the fleet of American sealers from New York which visited the South Shetland Islands in 1820–21.

The Tangra 2004/05 Expedition was commissioned by the Antarctic Place-names Commission at the Ministry of Foreign Affairs of Bulgaria, managed by the Manfred Wörner Foundation, and supported by the Bulgarian Antarctic Institute, the Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences, Bulgarian Posts, Uruguayan Antarctic Institute, Peregrine Shipping (Australia), and Petrol Ltd, TNT, Mtel, Bulstrad, Polytours, B. Bekyarov and B. Chernev (Bulgaria).