Saint Johns Range is a crescent-shaped mountain

Mountain

Image:Himalaya_annotated.jpg|thumb|right|The Himalayan mountain range with Mount Everestrect 58 14 160 49 Chomo Lonzorect 200 28 335 52 Makalurect 378 24 566 45 Mount Everestrect 188 581 920 656 Tibetan Plateaurect 250 406 340 427 Rong River...

 range about 20 nautical miles (37 km) long, in 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...

. It is bounded on the north by the Cotton, Miller and Debenham Glacier

Debenham Glacier

Debenham Glacier is a glacier flowing into the northern part of Wilson Piedmont Glacier on the coast of Victoria Land. First mapped by the Discovery expedition . It was named by the British Antarctic Expedition for Frank Debenham, geologist with the expedition and Director of the Scott Polar...

s, and on the south by Victoria Valley

Victoria Valley

Victoria Valley is one of the larger McMurdo Dry Valleys. Lake Vida is the largest lake of the valley. The Victoria River drains the Upper Victoria Glacier, with Upper Victoria Lake just below it and northwest of Lake Vida, into Vida Lake on its western side. Lake Thomas is east of Lake Vida....

 and the Victoria Upper

Victoria Upper Glacier

Victoria Upper Glacier is a glacier occupying the upper northwest end of Victoria Valley. It was named by the Victoria University of the Wellington Antarctic Expedition for their Alma Mater which sponsored the expedition....

 and Victoria Lower Glacier

Victoria Lower Glacier

Victoria Lower Glacier is a glacier occupying the lower eastern end of Victoria Valley where it appears to merge with Wilson Piedmont Glacier. It was named by the Victoria University of the Wellington Antarctic Expedition for their Alma Mater, which sponsored the expedition....

s. Named by the New Zealand Northern Survey Party of the Commonwealth Trans-Antarctic Expedition

Commonwealth Trans-Antarctic Expedition

The 1955–58 Commonwealth Trans-Antarctic Expedition was a Commonwealth-sponsored expedition that successfully completed the first overland crossing of Antarctica, via the South Pole...

, 1956–58, which surveyed peaks in the range in 1957. Named for St. Johns College at Cambridge, England, with which several members of the British Antarctic Expedition

Terra Nova Expedition

The Terra Nova Expedition , officially the British Antarctic Expedition 1910, was led by Robert Falcon Scott with the objective of being the first to reach the geographical South Pole. Scott and four companions attained the pole on 17 January 1912, to find that a Norwegian team led by Roald...

 (1910–13) were associated during the writing of their scientific reports, and in association with the adjacent Gonville and Caius Range.