The Allerbach is a tributary of the Warme Bode in the Harz Mountains of central Germany. It is just under long.
The source region of the "Little Allerbach" (Kleiner Allerbach) is in a boggy wood at a height of and lies about north of the level crossing on the K 1353 county road (Kreisstraße) (Sorge – Elend section) with the railway line of the Trans-Harz Railway.
The source region of the "Big Allerbach" (Großer Allerbach) is on the southwest hillside of the Rauher Jakob (); it lies at a height of .
The stream flows downhill in an easterly direction.
With its confluence immediately next to the L 98 Landesstraße (Tanne – Königshütte section), the Allerbach forms the historic boundary of the Amt of Elbingerode. Even today there are numerous boundary stones left and right of the stream banks.
See also List of rivers of Saxony-Anhalt
References