Crossword clues for River to the Humber. 5 letters:TRENTTributary of Humber River.TRENTRiver to the Humber.TRENTRiver to the Humber estuaryTRENTEnglish river that flows into the HumberHULLBritish port on the Humber River.OUESHumber river feederOUSERiver into the Humber.OUSERiver to the Humber.OUSERiver in Yorkshire, flowing into the Humber.