Coastline: 2,440 km note: Iran also borders the Caspian Sea (740 km)
Maritime claims: contiguous zone: 24 nm continental shelf: natural prolongation exclusive economic zone: bilateral agreements, or median lines in the Persian Gulf territorial sea : 12 nm
Climate: mostly arid or semiarid, subtropical along Caspian coast
Terrain: rugged, mountainous rim; high, central basin with deserts, mountains; small, discontinuous plains along both coasts
Elevation extremes: lowest point: Caspian Sea -28 m highest point : Qolleh-ye Damavand 5,671 m
Natural resources: petroleum, natural gas, coal, chromium, copper, iron ore, lead, manganese, zinc, sulfur
Land use: arable land : 10% permanent crops: 1% permanent pastures : 27% forests and woodland: 7% other: 55% (1993 est.)
Irrigated land: 94,000 sq km (1993 est.)
Natural hazards: periodic droughts, floods; dust storms, sandstorms; earthquakes along the Western border
Environment - current issues: air pollution, especially in urban areas, from vehicle emissions, refinery operations, and industrial effluents; deforestation; overgrazing; desertification; oil pollution in the Persian Gulf; inadequate supplies of potable water