The area occupied by this feature was first mapped as a bay and named Instefjorden (the innermost fjord) by the Lars Christensen Expedition (LCE) of 1936–37.

Surveys by Japanese Antarctic Research Expedition (JARE) of 1957–62, revealed the large glacier in this position which they named after Lt. Nobu Shirase, leader of the Japanese Antarctic Expedition of 1911–12.

The Instekleppane Hills are a group of low rock hills that protrude above the ice slopes at the east side of Shirase Glacier, just south of the southeastern extremity of Lützow-Holm Bay in Antarctica.

The hills were mapped by Norwegian cartographers from air photos taken by LCE personnel and named "instekleppane" ("the innermost lumps") after their appearance.

[5] This article incorporates public domain material from websites or documents of the United States Geological Survey.