South Beacon is the summit of a bold, flat-topped ridge rising to 2,210 m in the south part of Beacon Heights

Beacon Heights

The Beacon Heights are a small cluster of peaks between Beacon Valley and Arena Valley in Quartermain Mountains, Victoria Land, rising to in West Beacon, and also including East Beacon and South Beacon. They were named by Hartley Ferrar, geologist with the British National Antarctic Expedition...

, in the Quartermain Mountains

Quartermain Mountains

Quartermain Mountains is a group of exposed mountains, about 20 miles long, typical of ice-free features of the McMurdo Dry Valleys, Victoria Land, located south of Taylor Glacier and bounded by Finger Mountain, Mount Handsley, Mount Feather and Tabular Mountain; also including Knobhead, Terra...

, Victoria Land

Victoria Land

Victoria Land is a region of Antarctica bounded on the east by the Ross Ice Shelf and the Ross Sea and on the west by Oates Land and Wilkes Land. It was discovered by Captain James Clark Ross in January 1841 and named after the UK's Queen Victoria...

. A ridge system connects South Beacon with West Beacon

West Beacon

West Beacon is the prominent western peak, rising to 2,345 m in Beacon Heights, in the Quartermain Mountains, Victoria Land. The name "Beacon Height West" was first used by the Discovery expedition . The name was shortened by the New Zealand Geological Survey Antarctic Expedition , 1958-59....

, 1.5 nautical miles (2.8 km) north, and East Beacon

East Beacon

East Beacon is the prominent eastern peak, rising to 2,265 m in Beacon Heights, in the Quartermain Mountains, Victoria Land. Named East Beacon by the New Zealand Geological Survey Antarctic Expedition , 1958-59....

, 1.5 nautical miles (2.8 km) northeast. So named by the New Zealand Antarctic Place-Names Committee

New Zealand Antarctic Place-Names Committee

New Zealand Antarctic Place-Names Committee is an adjudicating committee established to authorize the naming of features in the Ross Dependency on the Antarctic continent. It is composed of the members of the New Zealand Geographic Board plus selected specialists on Antarctica...

 (NZ-APC) following geological work here by C.T. McElroy, G. Rose, and K.J. Whitby in 1980-81.