Macy Glacier in the context of "Simeon Peak"

Friesland Ridge (Hrebet Frisland \'hre-bet 'fris-land\) is a ridge on Livingston Island in the South Shetlands, part of the Tangra Mountains. The summit, Mount Friesland, which rises to 1,700 metres (5,600 ft), is the northwesternmost of the ridge's six main peaks. Its elevation was estimated at 1,684 metres (5,525 ft) by a 1995/96 Bulgarian survey; the present figure was produced by a 2003 Australian GPS survey, and closely matched (as 1,702 metres (5,584 ft)) by the Bulgarian survey Tangra 2004/05.

The local ice relief is subject to changes, causing variations in the mountain peaks’ elevation. According to a Bulgarian GPS survey by D. Boyanov and N. Petkov the elevation of Mt. Friesland was 1,693 metres (5,554 ft) in December 2016, making the peak lower than the adjacent St. Boris Peak (the latter's northernmost ice formation ‘The Synagogue’ rising to 1,699 metres (5,574 ft)) at that time.

St. Cyril Peak (Bulgarian: връх Св. Кирил, romanized: vrah Sv. Kiril, IPA: [ˈvrɤx svɛˈti ˈkiriɫ]) rises to 1,505m in Friesland Ridge in Tangra Mountains on Livingston Island in the South Shetland Islands, Antarctica. The peak is linked to St. Methodius Peak to the southwest by Vladaya Saddle and surmounts Ruen Icefall to the west, Macy Glacier to the east and Prespa Glacier to the south.

The peak is "named after St. Cyril (827-869 AD) who, together with St. Methodius, created the Glagolitic alphabet and translated the Holy Books into Bulgarian language".

St. Boris Peak (Bulgarian: връх Св. Борис, romanized: vrah Sv. Boris, IPA: [ˈvrɤx svɛˈti boˈris]) is an ice-covered mountain rising to 1,700 m in Friesland Ridge, Tangra Mountains on Livingston Island in the South Shetland Islands, Antarctica. It is the first or second highest peak of both the mountains and the island along with Mount Friesland (1,700.2 m). The two are connected by a short saddle of elevation 1,649 m dominated by ‘The Synagogue’, a sharp-peaked rock-cored ice formation abutting upon the central summit of St. Boris Peak. The peak is also connected to Simeon Peak by Paril Saddle, and surmounts Huntress Glacier to the northwest and west, and Macy Glacier to the southeast.

The peak's central summit is rising to 1,685 m, while its highest point ‘The Synagogue’ rises to 1,699 or 1,700 m. The local ice relief is subject to change; according to a Bulgarian GPS survey by D. Boyanov and N. Petkov the elevation of Mt. Friesland was 1,693 m in December 2016, making St. Boris Peak the summit of both Tangra Mountains and the island in that season. According to the American high accuracy Reference Elevation Model of Antarctica (REMA), Mount Friesland is 8 m (26 ft) higher than the central summit of St. Boris Peak and 14 m (46 ft) higher than ‘The Synagogue’. However, according to the 2022 later edition of REMA Mount Friesland is 4 m (13 ft) higher than the central summit of St. Boris Peak and 7 m (23 ft) lower than ‘The Synagogue’.

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.

Peshev Ridge (Peshev Rid \'pe-shev 'rid\) is a crescent-shaped ridge in central Tangra Mountains extending 2 km (1.2 mi) along the northeast coast of Brunow Bay and southeast of Macy Glacier, Livingston Island in the South Shetland Islands, Antarctica. Its east extremity is formed by the summit St. Naum Peak (620 m or 2,034 ft), separated from Balchik Ridge to the east by Starosel Gate. The ridge was named in honour of Dimitar Peshev (1894–1973), who led the nationwide campaign that kept Bulgaria’s Jews safe during the Holocaust.

Great Needle Peak (Bulgarian: Голям Иглен връх, romanized: Golyam Iglen vrah, IPA: [ɡoˈʎam ˈiɡlɛn ˈvrɤx]; variant name in Spanish: pico Falsa Aguja, lit. 'False Needle Peak') is the summit of the central Levski Ridge in Tangra Mountains on Livingston Island, Antarctica. Rising to 1,679.5 m, it is the third highest peak of both the mountains and the island after Mount Friesland (1700.2 m) and St. Boris Peak (1685 m). Great Needle Peak surmounts Huron Glacier and its tributary draining Devnya Valley to the north, Magura Glacier to the east, Srebarna Glacier to the south, and Macy Glacier to the southwest.