|Length||37 km (23 mi)|
|Administered under the Antarctic Treaty System|
Gillock Island is an ice-covered island, 37 kilometres (20 nmi) long and 3.7 to 11.1 kilometres (2 to 6 nmi) wide, with numerous rock outcrops exposed along its flanks. It is aligned north-south and lies in the eastern part of Amery Ice Shelf.
Delineated in 1952 by John H. Roscoe from air photos taken by U.S. Navy Operation Highjump (1946–47). Named by him for Lieutenant Robert A. Gillock, U.S. Navy, navigator on Operation Highjump photographic flights over this and other coastal areas between 14°E and 164°E.
- Composite Antarctic Gazetteer
- List of Antarctic and sub-Antarctic islands
- List of Antarctic islands south of 60° S
- Territorial claims in Antarctica
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