 Together with its tributary streams, the biggest of which are the Helmbach and the Breitenbach, the Speyerbach drains the winding valley and the heights surrounding it.The hills on the left-hand or northern side of the valley reach a maximum height above sea level of 514 metres in the "Mückenberg" and are clearly lower than those opposite.On the right hand, southern, side the Bloskülb (570 m) and the Brogberg (567 m) are the highest peaks.