title: Gronau (Sinn)
text: # Gronau (Sinn)
  
  Gronau (German pronunciation: (listen)) is a river of Hesse, Germany and a right tributary of the Sinn. Including its left source river Westernbach, it has a total length of 9.7 kilometres (6.0 mi).
  
  ## Course
  
  The Gronau rises in the unincorporated area Gutsbezirk Spessart in the Hessian part of the Mittelgebirge Spessart. It flows into the Sinn at Altengronau.
  
  