Before revision: The Channeled Scablands of Eastern Washington: the geologic story of the Spokane flood , p.18-19 United States Geological Survey (1973) Plunge pools are fluvial features of erosion which occur in the youthful stage of river development, characterized by steeper gradients and faster water flows.
After revision: They can also be found underwater in areas that were formerly above sea level, for example Perth Canyon off the coast of Western AustraliaThe Channeled Scablands of Eastern Washington: the geologic story of the Spokane flood , p.18-19 United States Geological Survey (1973) Plunge pools are fluvial features of erosion which occur in the youthful stage of river development, characterized by steeper gradients and faster water flows.