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| Location | islands in the Indian Ocean, about two-thirds of the way from Madagascar to Antarctica | | | Geographic coordinates | 53 06 S, 72 31 E | | | Zone | Antarctica | | | Area | total: 412 sq km
land: 412 sq km
water: 0 sq km | | | Land boundaries | 0 km | | | Coastline | 101.9 km | | | Maritime claims | territorial sea: 12 nm
exclusive fishing zone: 200 nm | | | Climate | antarctic | | | Terrain | Heard Island - 80% ice-covered, bleak and mountainous, dominated by a large massif (Big Ben) and an active volcano (Mawson Peak); McDonald Islands - small and rocky | | | Elevation extremes | lowest point: Indian Ocean 0 m
highest point: Mawson Peak, on Big Ben 2,745 m | | | Natural resources | fish | | | Irrigated land | 101.9 km | | | Natural hazards | Mawson Peak, an active volcano, is on Heard Island | | Environment -
current issues | NA | |
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