Total area: 923,770 km2
land area: 910,770 km2

Comparative area: slightly more than twice the size of California

Land boundaries: 4,047 km total; Benin 773 km, Cameroon 1,690 km, Chad 87 km, Niger 1,497 km

Coastline: 853 km

Maritime claims:

Continental shelf: 200 meters or to depth of exploitation;

Extended economic zone: 200 nm;

Territorial sea: 30 nm

Disputes: exact locations of the Chad-Niger-Nigeria and Cameroon-Chad-Nigeria tripoints in Lake Chad have not been determined, so the boundary has not been demarcated and border incidents have resulted; Nigerian proposals to reopen maritime boundary negotiations and redemarcate the entire land boundary have been rejected by Cameroon

Climate: varies--equatorial in south, tropical in center, arid in north

Terrain: southern lowlands merge into central hills and plateaus; mountains in southeast, plains in north

Natural resources: crude oil, tin, columbite, iron ore, coal, limestone, lead, zinc, natural gas

Land use: 31% arable land; 3% permanent crops; 23% meadows and pastures; 15% forest and woodland; 28% other; includes NEGL% irrigated

Environment: recent droughts in north severely affecting marginal agricultural activities; desertification; soil degradation, rapid deforestation

NOTE: The information regarding Nigeria on this page is re-published from the 1990 World Fact Book of the United States Central Intelligence Agency. No claims are made regarding the accuracy of Nigeria Geography 1990 information contained here. All suggestions for corrections of any errors about Nigeria Geography 1990 should be addressed to the CIA.