border countries: Algeria 956 km, Benin 266 km, Burkina Faso 628 km, Chad 1,175 km, Libya 354 km, Mali 821 km, Nigeria 1,497 km
Coastline: 0 km (landlocked)
Maritime claims: none (landlocked)
Climate: desert; mostly hot, dry, dusty; tropical in extreme south
Terrain: predominately desert plains and sand dunes; flat to rolling plains in south; hills in north
Elevation extremes: lowest point: Niger River 200 m
highest point: Mont Greboun 1,944 m
Natural resources: uranium, coal, iron ore, tin, phosphates, gold, petroleum
Land use: arable land: 3%
permanent crops: 0%