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Lines of equal latitude and longitude
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The two Lines of equal latitude and longitude join places on Earth whose coordinates of latitude and longitude are numerically equal. One line proceeds from the South Pole in a generally northeasterly direction crossing the equator at the Prime meridian and proceeding to the east of that meridian to the North Pole; the other proceeds from the South Pole in a generally northwesterly direction crossing the former at the equator and thence to the North Pole. The two lines form a figure 8 on the surface of the Earth, bisected by the Prime meridian and the Equator. The northeasterly line passes across Antarctica, the Southern and Atlantic Oceans, the equator and reaches land at Nigeria on the west coast of Africa at approximately . After crossing Nigeria, it crosses Chad, southeastern Libya, Egypt, the eastern Mediterranean Sea, touches northwest Syria, crosses Turkey, Georgia, southern Russia, the west of Kazakhstan, and Russia until it reaches the Arctic Ocean at the extreme north of the Yamal Peninsula. From there it continues to the North Pole. The northwesterly line proceeds via Antarctica, the Southern and Indian Oceans making landfall on South Africa's east coast. It crosses South Africa, northeast Lesotho, South Africa again, Botswana, Namibia and Angola to the Atlantic Ocean. It crosses the equator, the West Africa countries of Côte d'Ivoire, Guinea, Senegal and Mauritania, the North Atlantic and does not reach land again until Baffin Island (Canada). It then proceeds via Ellesmere Island and the Arctic Ocean to the North Pole. Nineteen countries (and Antarctica) have points of equal latitude and longitude within their boundaries; thirteen in Africa, five in Asia, and Canada in North America. There are nineteen points on international land borders with equal latitude and longitude, including three on the Syria—Turkey border and three on the Côte d'Ivoire—Guinea border. Outside the Antarctic and Arctic regions there are nine points on coastlines, including three on the Syria coast. Only at Hibberdene, South Africa does such a point coincide with a coastal town. The lines have an arbitrary nature due to the arbitrary position of the Prime meridian which passes through the Greenwich Observatory. Regions traversed by the northeasterly line *from the South Pole *Antarctica **British Antarctic Territory **Alexander Island **Graham Land *The Southern Ocean *The Atlantic Ocean **The Equator **Bight of Benin *Nigeria **Coast on the Bight of Benin **Delta State **Edo State **Delta State **Edo State **Kogi State **Benue State **Nasarawa State **Plateau State **Bauchi State **Gombe State **Yobe State **Borno State *Chad **border with Nigeria **Lac Region **Kanem Region **Borkou Region **Ennedi Region *Libya **border with Chad **Al Kufrah district *Egypt **border with Libya **New Valley Governorate **6th of October Governorate **Matruh Governorate **Beheira Governorate **Gharbia Governorate **Dakahlia Governorate ** coast near Ezbet Gamasaal Gharbiya *Mediterranean Sea *Syria **Coast of Latakia Governorate **coast *Mediterranean Sea *Syria **Coast of Latakia Governorate, again *Turkey **border with Syria **Hatay Province *Syria **border with Turkey **Aleppo Governorate *Turkey **border with Syria **Kilis Province **Gaziantep Province ** **Adıyaman Province **Malatya Province ** **Tunceli Province **Erzincan Province **Bayburt Province **Rize Province **Artvin Province **coast on the Black Sea *Black Sea *Georgia **coast on the Black Sea **Adjara **Guria **Samegrelo-Zemo Svaneti **Racha-Lechkhumi and Kvemo Svaneti **Samegrelo-Zemo Svaneti *Russia **border with Georgia **Kabardino-Balkaria **Stavropol Krai **Kalmykia **Astrakhan Oblast *Kazakhstan **border with Russia **Atyrau Province **West Kazakhstan Province *Russia **border with Kazakhstan **Orenburg Oblast **Bashkortostan **Perm Krai **Sverdlovsk Oblast **Khanty-Mansi Autonomous Okrug **Yamalo-Nenets Autonomous Okrug **Baydaratskaya Bay **Yamal Peninsula **coast on the Kara Sea *The Arctic Ocean *to the North Pole Regions traversed by the northwesterly line *from the South Pole *Antarctica **Australian Antarctic Territory **Prydz Bay *The Southern Ocean *The Indian Ocean *South Africa **coast on the Indian Ocean at Hibberdene **KwaZulu-Natal *Lesotho ** border with South Africa **Mokhotlong District **Butha-Buthe District *South Africa, again ** border with Lesotho **Free State **North West Province *Botswana ** border with South Africa **Southern District **Kweneng District **Ghanzi District *Namibia ** border with Botswana **Omaheke Region **Otjozondjupa Region **Okavango Region **Oshikoto Region **Ohangwena Region *Angola ** border with Namibia **Cuando Cubango Province **Cunene Province **Huíla Province **Benguela Province **coast on the Atlantic *The Atlantic Ocean *The Equator *Côte d'Ivoire **coast on the Atlantic **Lagunes Region **Sud-Bandama Region **Fromager Region **Haut-Sassandra Region **Dix-Huit Montagnes Region *Republic of Guinea ** border with Côte d'Ivoire **Nzérékoré Region *Côte d'Ivoire ** border with Guinea ** Region *Republic of Guinea ** border with Côte d'Ivoire **Nzérékoré Region **Kankan Region **Faranah Region **Kankan Region **Faranah Region **Labé Region *Senegal ** border with Guinea **Kédougou Region **Tambacounda Region **Matam Region **Louga Region **Saint-Louis Region *Mauritania ** border with Senegal **Trarza Region **coast on the Atlantic *The North Atlantic Ocean *Canada **Baffin Island **Baffin Bay **Ellesmere Island *The Arctic Ocean *to the North Pole See Also
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