90th meridian west

90°

90th meridian west

The meridian 90° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Gulf of Mexico, Central America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.

In Antarctica, the meridian defines the western limit of Chile's territorial claim. The land further west is not claimed by any nation.

The 90th meridian west forms a great circle with the 90th meridian east.

From Pole to Pole

Starting at the North Pole and heading south to the South Pole, the 90th meridian west passes through:

Co-ordinates	Country, territory or sea	Notes
	Arctic Ocean
	Canada	Nunavut — Ellesmere Island
	Nansen Sound
	Canada	Nunavut — Axel Heiberg Island
	Norwegian Bay
	Canada	Nunavut — Graham Island
	Norwegian Bay
	Canada	Nunavut — North Kent Island and Devon Island
	Barrow Strait
	Canada	Nunavut — Prince Leopold Island
	Prince Regent Inlet
	Canada	Nunavut — Baffin Island
	Gulf of Boothia
	Canada	Nunavut — several islands including Helen Island, and the mainland
	Hudson Bay
	Canada	Manitoba Ontario — from
	United States	Minnesota
	Lake Superior
	United States	Michigan Wisconsin — from Illinois — from Missouri — from Arkansas — from Tennessee — from , passing through Memphis (at ) Mississippi — from Louisiana — from , passing just east of New Orleans (at )
	Gulf of Mexico
	Mexico	Yucatán Campeche — from
	Guatemala
	El Salvador
	Pacific Ocean	Passing just west of Genovesa Island, Galápagos, Ecuador (at ) Passing just east of Santa Fe Island, Galápagos, Ecuador (at )
	Southern Ocean
	Antarctica	Border between unclaimed territory (to the west) and Antártica Chilena Province (to the east), claimed by Chile

See also

• 89th meridian west
• 91st meridian west
• 45X90 points