The meridian 20° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Greenland, Iceland, the Atlantic Ocean, the Southern Ocean, and Antarctica to the South Pole. The 20th meridian west forms a great circle with the 160th meridian east.

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20°

20th meridian west

In Antarctica, the meridian defines the border between the British Antarctic Territory and Queen Maud Land. Between the 5th parallel north and the 60th parallel south it forms the eastern boundary of the Latin American Nuclear-Weapon-Free Zone.

Starting at the North Pole and heading south to the South Pole, the 20th meridian west passes through:

More information Co-ordinates, Country, territory or sea ...

Co-ordinates	Country, territory or sea	Notes
90°0′N 20°0′W	Arctic Ocean
81°33′N 20°0′W	Greenland
78°49′N 20°0′W	Jokel Bay
77°59′N 20°0′W	Greenland	Gamma Island and Germania Land
76°55′N 20°0′W	Dove Bay
76°15′N 20°0′W	Greenland	Mainland, Kuhn Island, and the mainland again
74°16′N 20°0′W	Atlantic Ocean	Greenland Sea
66°2′N 20°0′W	Iceland	Northwestern Region Western Region Southern Region
63°32′N 20°0′W	Atlantic Ocean
60°0′S 20°0′W	Southern Ocean
73°25′S 20°0′W	Antarctica	Border between the Antarctic territorial claims of the  United Kingdom and  Norway

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• 19th meridian west
• 21st meridian west