The original river course inundated by an impounded water body. These are mostly used in drowned river systems like the Tennessee Valley Authority (TVA) lakes. May be a named feature.
This photo shows a small portion of the 297 acre Lake Delton, Wisconsin that drained when a Dam broke due to flooding. The original river course (Submerged Stream) is visible in this photograph. This photo was taken June 23rd, 2008. (Photo by Robert Kaufmann, FEMA)
feature type only: no attributes