Coastline: 2,495 km
Maritime claims:
Extended economic zone: 200 nm;
Territorial sea: 12 nm;
Military boundary line: 50 nm (all foreign vessels and aircraft without permission are banned)
Disputes: short section of boundary with China is indefinite;
Demarcation Line with South Korea
Climate: temperate with rainfall concentrated in summer
Terrain: mostly hills and mountains separated by deep, narrow valleys; coastal plains wide in west, discontinuous in east
Natural resources: coal, lead, tungsten, zinc, graphite, magnesite, iron ore, copper, gold, pyrites, salt, fluorspar, hydropower
Land use: 18% arable land; 1% permanent crops; NEGL% meadows and pastures; 74% forest and woodland; 7% other; includes 9% irrigated