Erlenbach (Speyerbach)
The is a river in the Palatinate Forest, in the, hence on the eastern side of the Palatinate watershed.
If flows generally to the north and after only 5 km flows into the Speyerbach shortly after the latter's nominal spring at Speyerbrunn. Hydrologically speaking, the origin of the Erlenbach is the real origin of the Speyerbach.
The distance from the Erlenbach's spring to the Speyerbach's confluence with the Rhine is 60 km. The drainage basin of the Erlenbach/Speyerbach system measures 596 km².