90th meridian west
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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, located midway between the Prime meridian and the 180th meridian; thus, the center of the Western Hemisphere is on this meridian.
In the United States, the Mississippi River runs close to the 90th meridian, crossing the meridian several times. The cities of St. Louis, Memphis and New Orleans are all close to the meridian.
One of the four 45 x 90 points is located in Rietbrock, Wisconsin, where the 45th parallel north intersects with the 90th meridian west, marking the halfway point between the 90° Latitude North, 180th Meridian East & West, 0° latitude, and 0° longitude.
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 90°0′N 90°0′W / 90.000°N 90.000°W / 90.000; -90.000 (Arctic Ocean) Arctic Ocean 81°54′N 90°0′W / 81.900°N 90.000°W / 81.900; -90.000 (Canada) Canada Nunavut — Ellesmere Island 81°1′N 90°0′W / 81.017°N 90.000°W / 81.017; -90.000 (Nansen Sound) Nansen Sound 80°31′N 90°0′W / 80.517°N 90.000°W / 80.517; -90.000 (Canada) Canada Nunavut — Axel Heiberg Island 78°17′N 90°0′W / 78.283°N 90.000°W / 78.283; -90.000 (Norwegian Bay) Norwegian Bay 77°22′N 90°0′W / 77.367°N 90.000°W / 77.367; -90.000 (Canada) Canada Nunavut — Graham Island 77°13′N 90°0′W / 77.217°N 90.000°W / 77.217; -90.000 (Norwegian Bay) Norwegian Bay 76°50′N 90°0′W / 76.833°N 90.000°W / 76.833; -90.000 (Canada) Canada Nunavut — North Kent Island and Devon Island 74°34′N 90°0′W / 74.567°N 90.000°W / 74.567; -90.000 (Barrow Strait) Barrow Strait 74°4′N 90°0′W / 74.067°N 90.000°W / 74.067; -90.000 (Canada) Canada Nunavut — Prince Leopold Island 73°59′N 90°0′W / 73.983°N 90.000°W / 73.983; -90.000 (Prince Regent Inlet) Prince Regent Inlet 72°4′N 90°0′W / 72.067°N 90.000°W / 72.067; -90.000 (Canada) Canada Nunavut — Baffin Island 71°31′N 90°0′W / 71.517°N 90.000°W / 71.517; -90.000 (Gulf of Boothia) Gulf of Boothia 69°7′N 90°0′W / 69.117°N 90.000°W / 69.117; -90.000 (Canada) Canada Nunavut — several islands including Helen Island, and the mainland 63°46′N 90°0′W / 63.767°N 90.000°W / 63.767; -90.000 (Hudson Bay) Hudson Bay 57°1′N 90°0′W / 57.017°N 90.000°W / 57.017; -90.000 (Canada) Canada Manitoba
Ontario — from 56°13′N 90°0′W / 56.217°N 90.000°W / 56.217; -90.000 (Ontario)48°3′N 90°0′W / 48.050°N 90.000°W / 48.050; -90.000 (United States) United States Minnesota 47°49′N 90°0′W / 47.817°N 90.000°W / 47.817; -90.000 (Lake Superior) Lake Superior 46°41′N 90°0′W / 46.683°N 90.000°W / 46.683; -90.000 (United States) United States Michigan
Wisconsin — from 46°19′N 90°0′W / 46.317°N 90.000°W / 46.317; -90.000 (Wisconsin), passing through Reedsburg (at 43°32′N 90°0′W / 43.533°N 90.000°W / 43.533; -90.000); crosses the 45th parallel north in Marathon County, Wisconsin, having one of the 45 x 90 points (at 45°00′N 90°00′W / 45.000°N 90.000°W / 45.000; -90.000)
Illinois — from 42°30′N 90°0′W / 42.500°N 90.000°W / 42.500; -90.000 (Illinois)
Missouri — from 37°58′N 90°0′W / 37.967°N 90.000°W / 37.967; -90.000 (Missouri), passing a mile and a half (2 km) east of Ste. Genevieve
Arkansas — from 36°0′N 90°0′W / 36.000°N 90.000°W / 36.000; -90.000 (Arkansas)
Tennessee — from 35°33′N 90°0′W / 35.550°N 90.000°W / 35.550; -90.000 (Tennessee), passing through Memphis (at 35°8′N 90°0′W / 35.133°N 90.000°W / 35.133; -90.000 (Memphis))
Mississippi — from 35°0′N 90°0′W / 35.000°N 90.000°W / 35.000; -90.000 (Mississippi), passing through Brandon (at 32°17′N 90°0′W / 32.283°N 90.000°W / 32.283; -90.000 (Brandon)) a suburb of Jackson
Louisiana — from 31°0′N 90°0′W / 31.000°N 90.000°W / 31.000; -90.000 (Louisiana), passing through New Orleans (at 30°2.5′N 90°0′W / 30.0417°N 90.000°W / 30.0417; -90.000 (New Orleans))29°13′N 90°0′W / 29.217°N 90.000°W / 29.217; -90.000 (Gulf of Mexico) Gulf of Mexico 21°10′N 90°0′W / 21.167°N 90.000°W / 21.167; -90.000 (Mexico) Mexico Yucatán
Campeche — from 20°28′N 90°0′W / 20.467°N 90.000°W / 20.467; -90.000 (Campeche)17°49′N 90°0′W / 17.817°N 90.000°W / 17.817; -90.000 (Guatemala) Guatemala Passing through Jalapa 13°57′N 90°0′W / 13.950°N 90.000°W / 13.950; -90.000 (El Salvador) El Salvador Ahuachapán — Passing through of Western Tacuba district (at 13°54′N 90°0′W / 13.900°N 90.000°W / 13.900; -90.000 (Tacuba)), Central San Francisco Menéndez district (at 13°50′N 90°00′W / 13.833°N 90.000°W / 13.833; -90.000 (San Francisco Menéndez)), and finishing the Barra de Santiago canton (at 13°41′N 90°0′W / 13.683°N 90.000°W / 13.683; -90.000 (Barra de Santiago)). 13°41′N 90°0′W / 13.683°N 90.000°W / 13.683; -90.000 (Pacific Ocean) Pacific Ocean Passing just west of Genovesa Island, Galápagos, Ecuador (at 0°19′N 89°58′W / 0.317°N 89.967°W / 0.317; -89.967 (Genovesa Island))
Passing just east of Santa Fe Island, Galápagos, Ecuador (at 0°49′S 90°2′W / 0.817°S 90.033°W / -0.817; -90.033 (Santa Fe Island))60°0′S 90°0′W / 60.000°S 90.000°W / -60.000; -90.000 (Southern Ocean) Southern Ocean 72°28′S 90°0′W / 72.467°S 90.000°W / -72.467; -90.000 (Antarctica) Antarctica Border between unclaimed territory (to the west) and Antártica Chilena Province (to the east), claimed by Chile
Next westward: 91st meridian west | 90th meridian west forms a great circle with 90th meridian east | Next eastward: 89th meridian west |
See also
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