Siple Ridge is a high (2,570 m) ridge, 3 nautical miles (6 km) long and 0.5 nautical miles (0.9 km) wide, being the more northern of two ridges that extend west from the Mount Feather block, 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...

. The narrow upper surface is capped by ice but rock is exposed at many points along abrupt cliffs. Named by Advisory Committee on Antarctic Names

Advisory Committee on Antarctic Names

The Advisory Committee on Antarctic Names is an advisory committee of the United States Board on Geographic Names responsible for recommending names for features in Antarctica...

 (US-ACAN) in 1992 after Ruth J. Siple, widow of renowned Antarctican Paul A. Siple (Mount Siple

Mount Siple

Mount Siple is a potentially active shield volcano, rising to and dominating the northwest part of Siple Island, which is separated from the Bakutis Coast, Marie Byrd Land, by the Getz Ice Shelf. Its youthful appearance strongly suggests that it last erupted in Holocene. It is capped by a summit...

, q.v.); Honorary President and active supporter of The Antarctican Society; Honored Guest at the dedication of the new U.S. Amundsen-Scott South Pole Station at the site on January 9, 1975.