30th meridian west
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The meridian 30° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Greenland, the Atlantic Ocean, the Southern Ocean, and Antarctica to the South Pole.
From Pole to Pole 
Co-ordinates Country, territory or sea Notes Arctic Ocean Greenland Northern Peary Land Frederick E. Hyde Fjord Greenland Southern Peary Land Independence Fjord Greenland Mainland and Sokongen Island Atlantic Ocean Southern Ocean Antarctica Claimed by both Argentina (Argentine Antarctica) and United Kingdom (British Antarctic Territory)
See also