Platypus Ridge (70°42′S 163°43′E / 70.700°S 163.717°E) is a large ice-covered ridge bordering the west side of the mouth of Lillie Glacier. It extends northeast from Bowers Mountains to the head of Ob' Bay. Its position was fixed by S.L. Kirkby, surveyor with ANARE (Australian National Antarctic Research Expeditions) (Thala Dan) in February 1962. Named by ANARE after this monotreme mammal, native only to Australia.
This article incorporates public domain material from "Platypus Ridge". Geographic Names Information System. United States Geological Survey.
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