Plunge pool Plunge pool A plunge pool (or plunge basin or waterfall lake) is a deep depression in a stream bed at the base of a waterfall or shut-in. It is created by the erosional forces of cascading water on the rocks at formation's base where the water impacts. The term may refer to the water occupying the depression, or the depression itself. Plunge pools are formed by the natural force of falling water, such as at a waterfall or cascade; they also result from man-made structures such as some spillway designs. Plunge pools are often very deep, generally related to the
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