Allerbach, alternative name for the Wallesbach, headstream of the Todbach in Hirstein and Namborn, Kreis St. Wendel, Saarland
Whilst the Tiefenbeek that rises north of the mountain flows northwest into the Sieber, the Grade Lutter that rises on its southern uplands is the right headstream of the Lutter that flows southwards into the Oder.
In 1872 Behm published an article (Beweise für die Identität des Lualaba mit dem Congo), which scientifically demonstrated that the Lualaba was a headstream of the Congo River.