Brichebor Peak (Antarctica) of Mount Slaughter (3444 m). US mapping in 1961, 1988 and 2007. Brichebor Peak (Antarctica) Brichebor Peak ( \'vr&h 'bri-che-bor\) is the peak rising to 2900 m in Vinson Massif, Sentinel Range in Ellsworth Mountains, Antarctica, situated at the end of a side ridge descending southwestwards from Príncipe de Asturias Peak (4680 m). It surmounts Tulaczyk Glacier to the southeast and Cairns Glacier to the northwest. The peak is named after Brichebor Peak in Rila Mountain, Southwestern Bulgaria. Brichebor Peak is located at , which is 8.17 km south of Knutzen Peak (3373 m), 6.35 km southwest of Silverstein Peak
Mount Ptolemy (Antarctica) Mount Ptolemy (Antarctica) Mount Ptolemy () is an isolated block mountain with four main summits, the highest rising to 1,370 meters. It lies close north of the Traffic Circle on the northwestern side of Mercator Ice Piedmont, Antarctic Peninsula. First observed by Finn Ronne and Carl Eklund of the U.S. Antarctic Service, 1939–41, from their sledge route through the Traffic Circle. Surveyed by Falkland Islands Dependencies Survey (FIDS) in 1947. Named by United Kingdom Antarctic Place-Names Committee (UK-APC) after Claudius Ptolemy (2nd century AD), Egyptian mathematician, astronomer and geographer, who introduced the system of coordinates of latitude and longitude for