Answer: RIVERBEDS

AnswerCrossword Clue
RIVERBEDSWatercourse channels
RIVERBEDSChannels between banks
RIVERBEDSStream bottoms
RIVERBEDSWatercourses.
riverbedsRIVERBED, the area covered by a river
riverbedsThe bed or channel in which a river flows
riverbedsThe bottom of a river