The Korean peninsula is mainly mountainous along its east coast, so most of its river water flows west, emptying into the Yellow Sea. Some of these rivers flow through lakes en route to the coast, but these are all artificial reservoirs, as there are no natural lakes on the Korean mainland. A few rivers head south, emptying into the Korea Strait and some more minor rivers flow east to the East Korea Bay, though these are usually little more than streams in comparison. In the list below, tributaries are listed under the river into which they flow and then in upstream order. They are listed counterclockwise, from the Amnok to the Duman.
(Clockwise from Jeju City Hall)