lowest point: Niger River 200 m
highest point: Idoukal-n-Taghes 2,022 m
Natural resources:
uranium, coal, iron ore, tin, phosphates, gold, molybdenum, gypsum, salt, petroleum
Land use:
arable land: 11.43%
permanent crops: 0.01%
other: 88.56% (2005)
Irrigated land:
730 sq km (2003)