The meridian 51° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Greenland, the Atlantic Ocean, South America, the Southern Ocean, and Antarctica to the South Pole.

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51°

51st meridian west

The 51st meridian west forms a great circle with the 129th meridian east.

Starting at the North Pole and heading south to the South Pole, the 51st meridian west passes through:

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

Co-ordinates	Country, territory or sea	Notes
90°0′N 51°0′W	Arctic Ocean
83°39′N 51°0′W	Lincoln Sea
82°31′N 51°0′W	Greenland	Wulff Land
82°24′N 51°0′W	Sherard Osborn Fjord
81°57′N 51°0′W	Greenland	Passing through several fjords, the Nuussuaq Peninsula and Alluttoq Island
69°32′N 51°0′W	Disko Bay
69°20′N 51°0′W	Greenland	Passing through several fjords
63°8′N 51°0′W	Atlantic Ocean
3°6′N 51°0′W	Brazil	Amapá Pará — from 0°0′N 51°0′W, passing through several islands in the mouth of the Amazon River Mato Grosso — from 9°48′S 51°0′W Goiás — from 14°37′S 51°0′W Mato Grosso do Sul — from 19°24′S 51°0′W Minas Gerais — from 19°38′S 51°0′W São Paulo — from 20°5′S 51°0′W Paraná — from 22°47′S 51°0′W Santa Catarina — from 26°14′S 51°0′W Rio Grande do Sul — from 27°58′S 51°0′W, passing through Lagoa dos Patos
31°20′S 51°0′W	Atlantic Ocean
60°0′S 51°0′W	Southern Ocean
77°1′S 51°0′W	Antarctica	Claimed by both  Argentina (Argentine Antarctica) and  United Kingdom (British Antarctic Territory)

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• 50th meridian west
• 52nd meridian west