contiguous zone: 24 nm
exclusive economic zone: bilateral agreements or median lines in the Persian Gulf
continental shelf: natural prolongation
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: Kuh-e Damavand 5,671 m