Northern Ireland is part of the United Kingdom on the island of Ireland. The Giant's Causeway is made of some 40,000 basalt columns formed by cooling lava.

Northern Ireland is one of the four constituent countries of the United Kingdom

England

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Northern Ireland

Scotland

Wales

Countries and province of United Kingdom map

0200 km (124 mi)400 km (249 mi)600 km (373 mi)800 km (497 mi)

Height

0 m (0 ft), 30 m (98 ft), 75 m (246 ft), 150 m (492 ft), 300 m (984 ft), 400 m (1310 ft), 600 m (1970 ft), 750 m (2460 ft), above 1000 m (3280 ft)

Sea depth

0 m (0 ft), 150 m (492 ft), 600 m (1970 ft), 1800 m (5910 ft), 3200 m (10500 ft), deeper than 5200 m (17060 ft)

Winter snow (approximate)