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42nd meridian west 
Summary
The meridian 42° 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.
42°
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42nd meridian westThe 42nd meridian west forms a great circle with the 138th meridian east.
From Pole to Pole edit
Starting at the North Pole and heading south to the South Pole, the 42nd meridian west passes through:
Co-ordinates Country, territory or sea Notes 90°0′N 42°0′W / 90.000°N 42.000°W Arctic Ocean 83°40′N 42°0′W / 83.667°N 42.000°W Lincoln Sea 83°13′N 42°0′W / 83.217°N 42.000°W 
Greenland
Nansen Land 82°51′N 42°0′W / 82.850°N 42.000°W J.P. Koch Fjord /
Navarana Fjord82°40′N 42°0′W / 82.667°N 42.000°W Greenland
Freuchen Land 62°43′N 42°0′W / 62.717°N 42.000°W Atlantic Ocean 2°43′S 42°0′W / 2.717°S 42.000°W 
Brazil
Maranhão
Piauí — from 3°14′S 42°0′W / 3.233°S 42.000°W
Bahia — from 9°13′S 42°0′W / 9.217°S 42.000°W
Minas Gerais — from 15°9′S 42°0′W / 15.150°S 42.000°W
Rio de Janeiro — from 20°56′S 42°0′W / 20.933°S 42.000°W, the mainland and Ilha do Cabo Frio23°1′S 42°0′W / 23.017°S 42.000°W Atlantic Ocean Passing just east of the Shag Rocks, 
South Georgia and the South Sandwich Islands (at 53°31′S 42°1′W / 53.517°S 42.017°W)
Passing just west of Black Rock, South Georgia and the South Sandwich Islands (at 53°39′S 41°49′W / 53.650°S 41.817°W)
60°0′S 42°0′W / 60.000°S 42.000°W Southern Ocean 77°40′S 42°0′W / 77.667°S 42.000°W Antarctica Claimed by both 
Argentina (Argentine Antarctica) and 
United Kingdom (British Antarctic Territory)
