Name StatusOfficial ValidatedFeatureMountainNZ Gazette Reference2012 (53) p.1477DatumRSRGD2000GeoTag[1] PositionDescriptionA sharply conical basalt cinder cone, 1700m high, on the summit of Hallet Peninsula above Hallett Station, and at the crest of a long ridge rising steadily from Cape Hallett. An astro station was placed on it by the survey team of the NZGSAE, 1957-58. Named by the expedition for G W Markham, then Secretary of the New Zealand National Committee for IGY, and a prime mover in organising the expedition (especially in obtaining the support of the US Navy) and in organising the New Zealand scientific effort at Hallett Station. His christian name is added to avoid confusion with Mt Markham and Markham Island, which are further south in Victoria Land and were named for Sir Clemants Markham and Sir Albert Markham.
