South Barrier (53°9′S 73°35′E / 53.150°S 73.583°E) is a rocky ridge descending southward from Budd Peak along the east margin of Fiftyone Glacier and terminating at Lambeth Bluff in southern Heard Island. The descriptive name was applied by ANARE (Australian National Antarctic Research Expeditions) in 1948.
This article incorporates public domain material from "South Barrier". Geographic Names Information System. United States Geological Survey.