Together with the Drachenfels (577 m) to the northwest and the Stabenberg (496 m) to the east, the Stoppelkopf lies on the watershed between the catchment areas of two Palatine Rhine tributaries, the Speyerbach (south) and the Isenach (north). The two longest tributaries of the Mußbach rise on the Stoppelkopf; both later empty into the left mouth branch of the Speyerbach, the Rehbach.