Linchpin Ice Rise is a small

ice rise An ice rise is a clearly defined elevation of the otherwise very much flatter ice shelf, typically dome-shaped and rising several hundreds of metres above the surrounding ice shelf . An ice rise forms where the ice shelf touches the seabed due ...

northeast of Miller Ice Rise, situated near the ice front of

Wordie Ice Shelf The Wordie Ice Shelf () was a confluent glacier projecting as an ice shelf into the SE part of Marguerite Bay between Cape Berteaux and Mount Edgell, along the western coast of Antarctic Peninsula. In March 2008, the British Antarctic Surve ...

on the

Fallières Coast The Fallières Coast is that portion of the west coast of the Antarctic Peninsula between the head of Bourgeois Fjord and Cape Jeremy and lies on Marguerite Bay and the Wordie Ice Shelf. On the south it is joined by Rymill Coast, and in the nor ...

of Antarctica. The feature was mapped from U.S.

Landsat The Landsat program is the longest-running enterprise for acquisition of satellite imagery of Earth. It is a joint NASA / USGS program. On 23 July 1972, the Earth Resources Technology Satellite was launched. This was eventually renamed to Lan ...

imagery, 1974–79, and was so named by the

UK Antarctic Place-Names Committee The UK Antarctic Place-Names Committee (or UK-APC) is a United Kingdom government committee, part of the Foreign and Commonwealth Office, responsible for recommending names of geographical locations within the British Antarctic Territory (BAT) an ...

because the ice rise plays a "

linchpin A linchpin, also spelled lynchpin, is a fastener used to prevent a wheel or other part from sliding off the axle upon which it is riding. The word is first attested in the late fourteenth century and derives from Middle English elements meaning ...

" role in maintaining the position of the ice front, as observed in 1979.

References

Ice rises of Graham Land Fallières Coast {{FallièresCoast-geo-stub