Demographics of Antarctica
Antarctica has few permanent residents, and contains research stations and field camps that are staffed seasonally or year-round, and former whaling settlements. The largest station, McMurdo Station, has a summer population of about 1,000 people and a winter population of about 200. Approximately 29 nations, all signatory to the Antarctic Treaty, send personnel to perform seasonal (summer) or year-round research on the continent and in its surrounding oceans.
Halzen Mesa
Halzen Mesa () is an oblong islandlike mesa, long and rising to , that is the largest and easternmost of three mesas in the Insel Range, McMurdo Dry Valleys, in Victoria Land. The upper surface is relatively level but the periphery is marked by abrupt cliffs that rise 500 to 600 m above the floor of Barwick Valley and McKelvey Valley. Named by the Advisory Committee on Antarctic Names in 2005 after Francis Halzen, Physics Department, University of Wisconsin–Madison, who in 1988 conceived of AMANDA, the Antarctic Muon And Neutrino Detector Array at Amundsen-Scott South Pole Station; United States Antarctic Program principal investigator in a project to build the IceCube neutrino telescope at the South Pole Station in six field seasons beginning 2004-05.