Plunge pool height of fall, the volume of water, the resistance of the rock below the pool and other factors. The impacting and swirling water, sometimes carrying rocks within it, abrades the riverbed into a basin, which often features rough and irregular sides. Plunge pools can remain long after the waterfall has ceased flow or the stream has been diverted. Several examples of former plunge pools exist at Dry Falls in the Channeled Scablands of eastern Washington. Plunge pools are fluvial features of erosion which occur in the youthful stage of river development, characterized by steeper gradients and faster water flows. Where
Geographical renaming of the McCune–Reischauer system in 7 July 2000 by the South Korean government has resulted in a string of changes to geographical names. The system is not used by North Korea. Examples of changes include: For geographical entities with multiple pre-existing names in one or more languages, an exonym or endonym may gradually be substituted and used in the English language. This is a list of internationally important or significant renamings. Geographical renaming Geographical renaming is the changing of the name of a geographical feature or area. This can range from the change of a street name to a change