The Westerwald is a mountain chain in Germany. It is located on the junction of the states (Bundesländer) of Rhineland-Palatinate, North Rhine-Westphalia and Hesse.
The mountains are bounded by four river valleys: the Rhine in the west, the Sieg in the north, the Dill[?] in the east, and the Lahn[?] in the south.
The highest peak is the Fuchskaute with 656 meters. 40 percent of the Westerwald's about 1000 km² are covered with woods.