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
Chute (gravity) fed, hence chutes. These include aqueducts, puquios, and acequias. Chutes are in common use in tall buildings to allow the rapid transport of items from the upper floors to a central location on one of the lower floors or basement. Chutes may be round, square or rectangular at the top and/or the bottom. An elevator is not a chute since it does not operate by means of gravity. Goust, a hamlet in southwestern France, is notable for its mountainside chute that is used to transport coffins. Chutes are also found in: Chute (gravity) A chute is a vertical or inclined