Terrain the Korean peninsula extending to the South East of Asia. The length, 1020 kilometers (612 miles) wide and 175 kilometers (105 miles) at the point where the narrowest of peninsula area of the country as 70% mountains. The terrain is the country with one of the most of the world.Mountains and valleys, mountains, consists of all the east coast is steep and extending into the eastern sea. While the coast on the South and West, the mountains gradually slopes down to the coastal plains.The Korean Peninsula was divided into 2 parts. The North 38 parallel is a country democracy, Republic of Korea in the south. And the country communist North Korea by being separated by medium the demilitarized zone.99.500 square kilometers.