Land boundaries: total: 5,968 km border countries: Cameroon 1,094 km, Central African Republic 1,197 km, Libya 1,055 km, Niger 1,175 km, Nigeria 87 km, Sudan 1,360 km
Coastline: 0 km (landlocked)
Maritime claims: none (landlocked)
Climate: tropical in south, desert in north
Terrain: broad, arid plains in center, desert in north, mountains in northwest, lowlands in south
Elevation extremes: lowest point: Djourab Depression 160 m highest point: Emi Koussi 3,415 m
Natural resources: petroleum (unexploited but exploration under way), uranium, natron, kaolin, fish (Lake Chad)
Land use: arable land: 3% permanent crops: 0% permanent pastures: 36% forests and woodland: 26% other: 35% (1993 est.)
Irrigated land: 140 sq km (1993 est.)
Natural hazards: hot, dry, dusty harmattan winds occur in north; periodic droughts; locust plagues