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List of divided islands

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This article is about a list of divided islands. For the 2015 Indian book about the Sri Lankan conflict, see This Divided Island.
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This is a list of islands whose land is divided by one or more international borders.

Buffer zone in Nicosia

Sea islands

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[Several of the density figures, such as those marked (*), don't agree with the other statistics.]

Island Area
(km2/sq mi) 		Population Countries/Dependencies (Provinces/States/Sovereign) Area Population Population
per km2/per sq mi
New Guinea[1] 785,753/303,381
[2] 		11,306,940  Papua New Guinea 59% 68% 17/44
 Indonesia (Central Papua, Highland Papua, Papua, South Papua, and West Papua) 41% 32% 11/28
Borneo[3] 748,168/288,869
[2] 		21,258,000  Indonesia (Central, East, North, South, and West Kalimantan) 73% 70% 27/70
 Malaysia (Sabah and Sarawak) 26% 28% 31/80
 Brunei 1% 2% 78/200
Ireland 84,421/32,595
[4] 		6,806,900  Ireland 83% 72% 70/180
 United Kingdom (Northern Ireland) 17% 28% (*)275/710
Hispaniola[5] 76,192/29,418
[6][7] 		21,396,000  Dominican Republic 64% 50% 221/570
 Haiti 36% 50% 391/1,010
Isla Grande de
Tierra del Fuego 		47,992/18,530
[2] 		133,861  Chile (Antártica Chilena, Tierra del Fuego) 61% 5% (*)0.6/1.6
 Argentina ( Tierra del Fuego) 39% 95% 6.9/18
Timor 28,418/10,972
[2] 		3,182,693  Indonesia ( East Nusa Tenggara) 51% 63% 128/330
 East Timor 49% 37% 78/200
Cyprus 9,234/3,565
[2] 		1,133,803 De jure
 Cyprus 97% 98% 86/220
Akrotiri and Dhekelia ( United Kingdom) 3% 2% 62/160
De facto
 Cyprus 58% 56% 81/210
 Northern Cyprus 35% 41% 100/260
 United Nations (UN Buffer Zone in Cyprus) 4% 1% (*)88/230
Akrotiri and Dhekelia ( United Kingdom) 3% 2% 62/160
Dall Island
[8][9][10][11][12] 		655.2/253.0
[2] 		~20  United States ( Alaska) <100% 100% ~0.03/0.078
 Canada ( British Columbia) >0% none none
Sebatik Island 452.2/174.6
[2] 		105,000  Indonesia ( North Kalimantan) 55% 76% 320/830
 Malaysia ( Sabah) 45% 34% 120/310
Usedom[13] 445/172
 85,047  Germany ( Mecklenburg-Vorpommern) 84% 41% 84/220
 Poland ( West Pomeranian Voivodeship) 16% 59% 625/1,620
Saint Martin 91.9/35.5
[2] 		77,741 Saint-Martin ( France) 59% 51% 682/1,770
 Sint Maarten ( Kingdom of the Netherlands) 41% 49% 1,110/2,900
Hans Island 1.2/0.46
 0  Greenland ( Kingdom of Denmark) 60% none none
 Canada ( Nunavut) 40% none none
Kataja
(including Inakari[14]) 		0.71/0.27 0  Sweden (Norrbotten County) ~85% none none
 Finland (Lapland) ~15% none none
Passport Island[15] 0.66/0.25 ~10  Bahrain (Northern Governorate) ~50% ~50% ~8/21
 Saudi Arabia (Eastern Province) ~50% ~50% ~8/21
K Island[16][17] 0.56/0.22 0  Ukraine ( Odesa Oblast) ~60% none none
 Romania (Tulcea County) ~40% none none
Koiluoto[18] 0.03/0.012 0  Finland (Kymenlaakso) ~60% none none
 Russia (Leningrad Oblast) ~40% none none
Vanhasaari/Maly Pogranichny [ru])[19][20]  Finland (Kymenlaakso)
 Russia (Leningrad Oblast)
Jähi[21] 0  Finland (Kymenlaakso) none none
 Russia (Leningrad Oblast) none none
Island southeast of Peräluoto[22] 0  Finland (Kymenlaakso) none none
 Russia (Leningrad Oblast) none none
Märket 0.03/0.012 0  Åland ( Finland) ~55% none none
 Sweden (Stockholm County and Uppsala County) ~45% none none

Lake islands

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River islands

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Historically divided islands

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Other islands have been divided by international borders in the past but they are now unified.

The definite borders of modern nation states do not apply in other forms of societal organisation, where "divided" islands may consequently be less noteworthy. For example, in Ancient Greece, the island of Euboea was divided among several city-states, including Chalcis and Eretria; and before its settlement by Europeans, the Island of Tasmania was divided among nine indigenous tribes.

Islands in wartime may be divided between an invading and defending power, as with Crete in 1645–1669 between the Ottoman Empire and the Republic of Venice.

Examples of formerly divided islands include:

A few former islands have disappeared because of changes in water levels:

Subnationally divided islands

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There are islands that lie across different provinces or states of the same country.

Killiniq Island of Canada, which is divided between Newfoundland and Labrador and Nunavut, whereas Melville Island and Victoria Island are divided between Nunavut and the Northwest Territories. In Australia, the Boundary Islet is divided between Tasmania and Victoria.

Smith Island in Chesapeake Bay and Assateague Island, a barrier island on the Atlantic coast of the United States, are divided between the states of Maryland and Virginia. Ellis Island contains a true exclave of the state of New York, which is largely the area of the original natural island, while all land reclamation extensions from 1890-1935 are in New Jersey. The states also share Shooters Island in Newark Bay. Owing only to accretion of silt, an island has arisen spontaneously in the Mississippi River at the location of the boundary trijunction of Arkansas, Louisiana, and Mississippi, and is thus divided among the three states.

Pag, in Croatia, is divided between Zadar County and Lika-Senj County.

Ishima, in Japan, is divided between Kagawa Prefecture in the South and Okayama Prefecture in the north. Chek Lap Kok in Hong Kong is divided between Islands and Tuen Mun districts, and Lantau is divided between Islands and Tsuen Wan districts.

Chongming Island, while most commonly known as main part of Chongming District of Shanghai, is having a long and narrow part on the northwest of the island which administrated by Nantong, Jiangsu.

See also

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References

[edit]
  1. ^ New Guinea is the second most extensive sea island and the highest sea island with the summit of Puncak Jaya at 4,884 metres (16,024 ft).
  2. ^ a b c d e f g h "Islands by land area". UN system-wide Earthwatch. United Nations Environment Programme. 1998-02-18. Archived from the original on 2018-02-20. Retrieved 2009-09-27.
  3. ^ Borneo is the third most extensive sea island and the third highest sea island with the summit of Mount Kinabalu at 4,095 metres (13,435 ft).
  4. ^ Nolan, William. "Geography of Ireland". Government of Ireland. Archived from the original on 24 November 2009. Retrieved 11 November 2009.
  5. ^ Lago Enriquillo on Hispaniola is the lowest point on any sea island at -46 metres (151 ft).
  6. ^ Central America and Caribbean: Haiti, CIA World Factbook
  7. ^ Central America and Caribbean: Dominican Republic, CIA World Factbook
  8. ^ The tip of Cape Muzon was established as the "point of commencement" of the international boundary with Alaska in the Anglo-Russian Convention of 1825. A Court of Arbitration in 1903 ruled that Point "A" (54°39′43.993″N 132°41′3.093″W / 54.66222028°N 132.68419250°W / 54.66222028; -132.68419250) was the initial point of this boundary. Canada has accepted this as a demarcated boundary; however, the U.S. disputes that Point "A" is a boundary point.
  9. ^ Davidson, George (1903). The Alaska Boundary. San Francisco: Alaska Packers Association. pp. 79–81, 129–134, 177–179, 229.
  10. ^ "International Boundary Commission definition of the Canada/US boundary in the NAD83 CSRS reference frame". Archived from the original on 2011-07-26. Retrieved 2015-03-21.
  11. ^ White, James (1914). Boundary Disputes and Treaties. Toronto: Glasgow, Brook & Company. pp. 936–958.
  12. ^ Gray, David H. (Autumn 1997). "Canada's Unresolved Maritime Boundaries" (PDF). IBRU Boundary and Security Bulletin. p. 61. Retrieved 2015-03-21.
  13. ^ Margedant, Udo; Thomas Ellerbeck (1991). Politische Landeskunde Mecklenburg-Vorpommern (in German). Mecklenburg-Vorpommern: Landeszentrale für politische Bildung. p. 89.
  14. ^ Map of Inakari, the Finnish part of Kataja 65°41′59″N 24°10′08″E / 65.699644°N 24.168781°E / 65.699644; 24.168781
  15. ^ Passport Island is an artificial island approximately in the middle of the King Fahd Causeway.
  16. ^ Nova Zemlia Island or K Island is a barrier island formed in Danube River Delta in 1988.
  17. ^ Giosan, Liviu; Donenelly, Jeffrey P.; Vespremeanu, Emil; Bhattacharya, Janok P.; Olariu, Cornel; Buonaiuto, Frank S. (2005). "River Delta Morphodynamics: Examples from the Danube Delta" (PDF). River Deltas—Concepts, Models, and Examples (Special Publication No. 83). Society for Sedimentary Geology: 403–405. ISBN 1-56576-113-8.
  18. ^ Map of Koiluoto 60°30′21″N 27°46′21″E / 60.50575°N 27.772472°E / 60.50575; 27.772472
  19. ^ Map of Vanhasaari 60°28′19″N 27°46′01″E / 60.472069°N 27.766914°E / 60.472069; 27.766914
  20. ^ Map of Vanhasaari/Maly Pogranichny
  21. ^ Map of Jähi 60°19′31″N 27°36′58″E / 60.325211°N 27.616037°E / 60.325211; 27.616037
  22. ^ Map of divided island southeast of Peräluoto 60°32′09″N 27°46′41″E / 60.535716°N 27.778154°E / 60.535716; 27.778154
  23. ^ Retrieved 19 June 2013 Bing Maps
  24. ^ Retrieved 19 June 2013 North Dakota Hub Explorer Archived 2013-05-08 at the Wayback Machine
  25. ^ Retrieved 19 June 2013 Bing Maps
  26. ^ Retrieved 19 June 2013 North Dakota Hub Explorer Archived 2013-05-08 at the Wayback Machine
  27. ^ Retrieved 19 June 2013 Bing Maps
  28. ^ Retrieved 19 June 2013 North Dakota Hub Explorer Archived 2013-05-08 at the Wayback Machine
  29. ^ Retrieved 19 June 2013 Bing Maps
  30. ^ Retrieved 19 June 2013 North Dakota Hub Explorer Archived 2013-05-08 at the Wayback Machine
  31. ^ Retrieved 19 June 2013 Bing Maps
  32. ^ Retrieved 19 June 2013 North Dakota Hub Explorer Archived 2013-05-08 at the Wayback Machine
  33. ^ Retrieved 19 June 2013 Bing Maps
  34. ^ Retrieved 19 June 2013 North Dakota Hub Explorer Archived 2013-05-08 at the Wayback Machine
  35. ^ Retrieved 19 June 2013 Bing Maps
  36. ^ Retrieved 19 June 2013 North Dakota Hub Explorer Archived 2013-05-08 at the Wayback Machine
  37. ^ Retrieved 19 June 2013 North Dakota Hub Explorer Archived 2013-05-08 at the Wayback Machine
  38. ^ "Pine and Curry Island SNA". Minnesota Department of Natural Resources. Retrieved 2021-04-27.
  39. ^ Jacques Boisvert. "Province Island". Retrieved 2006-11-04. It is the largest island in Lake Memphremagog, being 77 acres, of which 7 acres, are in the United States.
  40. ^ "Norway-Russia Boundary Map: Boundary markers 167–177: Sandneset-Klistervatn" (in Norwegian and Russian). Norwegian Boundary Commission for the Norway-Russia border. Archived from the original on 2007-08-14. Retrieved 2007-09-25. — boundary markers #169–172
  41. ^ "Norway-Russia Boundary Map: Boundary markers 7–14: Grenseberg-Ødevasselva" (in Norwegian and Russian). Norwegian Boundary Commission for the Norway-Russia border. Archived from the original on 2007-08-14. Retrieved 2007-09-25. — boundary markers #12–13 (Korkeasaari) & #14 (unnamed islet)
  42. ^ Portion of Nuijamaanjärvi with Äikkäänniemi marked from Citizen's Mapsite of Finland.
  43. ^ Portion of Yla-Tirja with divided islands at markers 93 (Suursaari) and 94 (smaller island) from Citizen's Mapsite of Finland.
  44. ^ Portion of Melaselänjärvi showing Tarraassiinsaari and Härkäsaari from Citizen's Mapsite of Finland.
  45. ^ Portion of Melaselänjärvi showing Kiteensaari from Citizen's Mapsite of Finland.
  46. ^ Portion of Kokkojärvi showing Rajasaari from Citizen's Mapsite of Finland.
  47. ^ Portion of Vuokkijärvi showing Kalmasaari from Citizen's Mapsite of Finland.
  48. ^ Portion of Hietajärvi showing Varposaari from Citizen's Mapsite of Finland.
  49. ^ Portion of Parvajärvi showing Parvajärvensaari from Citizen's Mapsite of Finland.
  50. ^ Office of the Geographer, Bureau of Intelligence and Research (1967-02-01). International Boundary Study No. 74: Finland–U.S.S.R. boundary (PDF). United States Department of State. p. 21. Archived from the original (PDF) on 2006-09-16. Hence the frontier runs...to a point on a small unnamed island in Lake Pukarinjarvi between the cape west of the village of Laitela and the Niittysaaryi island.
  51. ^ Portion of Pukarijärvi with Keuhkosaari marked from Citizen's Mapsite of Finland.
  52. ^ International Boundary Study No. 74, page 22. ""The frontier follows the creek down to Lake Onkamojarvi, intersects the small island of Siiheojansuusaai and proceeds in a straight line to the small island of Tossensaari."
  53. ^ Portion of Onkamojärvi from Citizen's Mapsite of Finland (Siiheojansuusaari is IV/179; Tossonsaari is IV/180)
  54. ^ Portion of Kivisarijärvi with divided island marked from Citizen's Mapsite of Finland. 69°44′09″N 28°52′56″E / 69.735926°N 28.88235°E / 69.735926; 28.88235
  55. ^ Neighborhood of boundary marker 347A, with divided island marked from Citizen's Mapsite of Finland. 69°53′N 28°18′E / 69.89°N 28.3°E / 69.89; 28.3
  56. ^ Verified at Norwegian state cartographic agency website (in English, Norwegian, and Northern Sami)
  57. ^ 58°53′18″N 11°27′27″E / 58.88843°N 11.45739°E / 58.88843; 11.45739
  58. ^ Hisøya: 58°54′22.8″N 11°39′7.1″E / 58.906333°N 11.651972°E / 58.906333; 11.651972
  59. ^ Søndre Boksjø: 59°02′N 11°42′E / 59.03°N 11.7°E / 59.03; 11.7
  60. ^ Salholmen: 59°14′15.96″N 11°49′32.24″E / 59.2377667°N 11.8256222°E / 59.2377667; 11.8256222; Mosvikøya 59°15′55″N 11°49′32″E / 59.26528°N 11.82556°E / 59.26528; 11.82556; Trollön : 59°15′17.76406″N 11°49′13.45279″E / 59.2549344611°N 11.8204035528°E / 59.2549344611; 11.8204035528
  61. ^ Tannsjøen Island ("Nr 54" on Norwegian map): 59°52′21.67″N 11°54′59.31″E / 59.8726861°N 11.9164750°E / 59.8726861; 11.9164750
  62. ^ Linneholmene: 59°53′20.98″N 12°1′59.96″E / 59.8891611°N 12.0333222°E / 59.8891611; 12.0333222
  63. ^ Jensøya: 59°53′35.77″N 12°6′47.88″E / 59.8932694°N 12.1133000°E / 59.8932694; 12.1133000
  64. ^ Storøya: 60°0′55.9″N 12°23′42.5″E / 60.015528°N 12.395139°E / 60.015528; 12.395139
  65. ^ Fallsjøholmen: 60°33′2.9″N 12°34′54.76″E / 60.550806°N 12.5818778°E / 60.550806; 12.5818778
  66. ^ Kroksjøen's island: 60°44′02″N 12°23′43″E / 60.733895°N 12.395381°E / 60.733895; 12.395381
  67. ^ Vonsjøen's island: 62°15′38″N 12°17′46″E / 62.260625°N 12.296161°E / 62.260625; 12.296161
  68. ^ Skurdalssjøen's island: 63°21′28″N 12°05′10″E / 63.357646°N 12.085973°E / 63.357646; 12.085973
  69. ^ Gihcijoka island: 67°39′55″N 16°34′11″E / 67.665396°N 16.569616°E / 67.665396; 16.569616
  70. ^ Čoarvejávri's islands: largest:68°01′46″N 17°57′48″E / 68.029364°N 17.963228°E / 68.029364; 17.963228; middle:68°01′35″N 17°57′43″E / 68.0262611°N 17.9620527°E / 68.0262611; 17.9620527; southern:68°01′29″N 17°57′37″E / 68.0247914°N 17.9604023°E / 68.0247914; 17.9604023
  71. ^ Krogh, Jan S. "Lake Druksiai". Retrieved 2006-12-10. The international border is marked on the map.
  72. ^ "World Lakes Database: LAKE DRUKSIAI". International lakes environment committee. Archived from the original on 2007-03-12. Retrieved 2006-12-10. Number of main islands (name and area): Zamok (0.26 km2), Sosnovec (0.048 km2), Utovec (0.0088 km2) and 5 nameless islands.
  73. ^ "Bathymetric map of Lake Drūkšiai". International lakes environment committee. Archived from the original (GIF) on 8 January 2006. Retrieved 2006-12-10. Sosnovec is named on this map.
  74. ^ Coordinates of Lake Drūkšiai:55°37′N 26°38′E / 55.617°N 26.633°E / 55.617; 26.633
  75. ^ Verified against Ordnance Survey of Ireland 6-inch map of the townland of Tober, County Donegal; surveyed 1905-05-05. Coordinates: 54°32′39″N 8°00′30″W / 54.5441°N 8.0084°W / 54.5441; -8.0084 Irish national grid reference system: G996663 Archived 2013-11-09 at the Wayback Machine
  76. ^ "Visor cartográfico de Chile". Retrieved 2020-07-07.
  77. ^ Office of the Geographer, Bureau of Intelligence and Research (1976-02-20). International Boundary Study No. No. 154 – Djibouti – Ethiopia Boundary (PDF). United States Department of State. p. 8. Archived from the original (PDF) on 2013-11-09. From Monument No. 53 on the south bank of Lake Abbe, the border crosses the lake from south to north continuing in a straight line for 30 kilometers. It cuts across the islet of hill 255 off Cape Aleilou.
  78. ^ "Map of Commune of Schengen" (PDF). Commune of Schengen. Archived from the original (PDF) on 2007-06-15. Retrieved 2006-12-10.. Coordinates: 49°28′08″N 6°22′05″E / 49.46894°N 6.36812°E / 49.46894; 6.36812
  79. ^ a b Дополнительное соглашение между Российской Федерацией и Китайской Народной Республикой о российско-китайской государственной границе на ее Восточной части Archived 2011-08-12 at the Wayback Machine от 14 октября 2004 года.
  80. ^ The northern shore of Corocoro is on the open ocean, but it is not truly a sea island as the southern boundary is a freshwater channel. The island is claimed in its entirety by Venezuela. 8°31′01″N 60°04′59″W / 8.517°N 60.083°W / 8.517; -60.083
  81. ^ Office of the Geographer, Bureau of Intelligence and Research (1985-04-15). International Boundary Study No. 174: Brazil – Colombia boundary (PDF). United States Department of State. p. 8. Archived from the original (PDF) on 2006-09-16. The final report allocated all river islands on the basis of the thalweg with the exception of San Jose Island on the Rio Negro which was split between Brazil (southern half) and Colombia. Co-ordinates:1°13′42″N 66°51′17″W / 1.228401°N 66.854811°W / 1.228401; -66.854811
  82. ^ Barros, Vicente (Coordinator) Impact Of Global Change On The Coastal Areas Of The Rio De La Plata: Sea Level Rise And Meteorological Effects. Page 7[permanent dead link‍]
  83. ^ See map of Nawabganj District, map of Rajshahi District, and map of Daulatpur upazila of Kushtia District, all in Bangladesh.
  84. ^ See map of Dilma upazila in Nilphamari District, Bangladesh.
  85. ^ See map of Kurigram district, Bangladesh.
  86. ^ Chowdhury, Sifatul Quader; Chowdhury, Masud Hasan (2012). "Char". In Islam, Sirajul; Jamal, Ahmed A. (eds.). Banglapedia: National Encyclopedia of Bangladesh (Second ed.). Asiatic Society of Bangladesh.
  87. ^ Office of the Geographer, Bureau of Intelligence and Research (1964-11-23). International Boundary Study No. 41: Greece – Turkey boundary (PDF). United States Department of State. p. 7. Archived from the original (PDF) on 2009-03-16. Returning to the median of the Maritsa, [...] the boundary continues [...] to boundary marker No. 24 on the northern end of an island designated "Q". Thence, the boundary line extends a distance of 800.5 feet to marker No. 25 near the center, thence a distance of 1,804 feet to marker No. 26 on the southwestern extremity of island "Q".
  88. ^ "Zmluva medzi Poľskou republikou a Slovenskou republikou o zmenách priebehu štátnej hranice a schválení hraničnej dokumentácie (AGREEMENT between the Polish Republic and the Slovak Republic on changes of the boundary line and the approval of border documentation, drawn up in the Old Ľubovňa on 29 July 2002.)". Dziennik Ustaw (in Slovak) (203). Prime Minister of Poland: 1686. 2005. Archived from the original on 2013-11-09. Retrieved 28 May 2013.
  89. ^ "Visor cartográfico de Chile". Retrieved 2020-07-07.
  90. ^ "Visor cartográfico de Chile". Retrieved 2020-07-07.
  91. ^ "NDGIS North Dakota Hub Explorer". Archived from the original on 8 May 2013. Retrieved 19 June 2013.
  92. ^ Dookhan, Isaac (1994). A History of the Virgin Islands of the United States. Kingston, Jamaica: Canoe Press. ISBN 9789768125057., pp. 40-49
  93. ^ Ramerini, Marco. "Dutch and Courlanders in Tobago: A history of the first settlements, 1628–1677". Archived from the original on 2007-09-28. Retrieved 2007-10-01.
  94. ^ Ireland, Gordon (1941). Boundaries, possessions, and conflicts in Central and North America and the Caribbean. New York: Octagon Books. p. 344.
  95. ^ Wolff, Sir Henry Drummond (1855). The island empire, or, Scenes of the first exile of the Emperor Napoleon I: together with a narrative of his residence on the island of Elba, taken from local information, the papers of the British resident, and other authentic sources. Bosworth. pp. 304–322. Retrieved 27 August 2011.
  96. ^ Frey, Linda; Frey, Marsha (1995). The treaties of the War of the Spanish Succession: an historical and critical dictionary. Greenwood Publishing Group. pp. 421–2. ISBN 978-0-313-27884-6. Retrieved 27 August 2011.
  97. ^ United States. Central Intelligence Agency. (1987). "Land and waters of the Panama Canal Treaty (map)". Washington, D.C. Archived from the original on 2016-03-04. Retrieved 2015-07-15.
  98. ^ "Carte IV. Aires de terre et d'eau mises à disposition du fonctionnement et de la défense du canal de Panama par le traité relatif au canal de Panama du 7 septembre 1977". Dirección ejecutiva para los asuntos del tratado (DEPAT). Ciudad de Panama. 1981. Retrieved 2015-07-11.
  99. ^ A treaty between Great Britain and the United States providing for the more complete definition and demarcation of the international boundary between the Dominion of Canada and the United States. 1908. pp. 1–3. hdl:2027/hvd.32044086241809.
  100. ^ "Eastport Quadrant 15x15 grid map". United States Geological Survey. 1907. Archived from the original on 2017-08-03. Retrieved 2016-02-07. (download)
  101. ^ Office of the Geographer (June 1969). "Chad-Nigeria boundary". United States Department of State. Archived from the original (JPEG) on 2007-06-15. Retrieved 2006-12-06.
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