Linchpin Ice Rise is a small ice rise northeast of Miller Ice Rise

Miller Ice Rise

Miller Ice Rise is an ice rise nearly 2 nautical miles long and 1 nautical mile wide at the ice front of Wordie Ice Shelf, 16 nautical miles west-northwest of Triune Peaks, in south Marguerite Bay. Surveyed by the Falkland Islands Dependencies Survey , 1948–49, the ice rise was photographed...

, situated near the ice front of Wordie Ice Shelf

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....

 on Fallières Coast

Fallieres Coast

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 north by Loubet Coast. Fallières Coast was first explored in...

. The feature was mapped from U.S. Landsat imagery, 1974-79. So named by United Kingdom Antarctic Place-Names Committee (UK-APC) because the ice rise plays a key role in maintaining the position of the ice front, as observed in 1979.