Coastline: 101.9 km

Maritime claims: exclusive fishing zone: 200 nm territorial sea: 3 nm

International disputes: none

Climate: antarctic

Terrain: Heard Island - bleak and mountainous, with a quiescent volcano; McDonald Islands - small and rocky lowest point: Indian Ocean 0 m highest point: Big Ben 2,745 m

Natural resources: none

Land use:
arable land: 0%
permanent crops: 0%
meadows and pastures: 0%
forest and woodland: 0%
other: 100%

Irrigated land: 0 sq km

Environment:
current issues: NA
natural hazards: Heard Island is dominated by a dormant volcano
called Big Ben
international agreements: NA

Geographic note: primarily used for research stations