Renne) is No. 28 in the system of checkpoints in the Harzer Wandernadel. Hydroelectricity Near Steinerne Renne station there is a hydropower plant, opened in 1899, which was used to power the gravel and granite works operating in those days. In 1943 it went into the possession of the town of Wernigerode, which used it to supply power to the district of Hasserode. From 1945 it was run by the VEB Energiekombinat Magdeburg, later the VEB Instandsetzungsbetrieb für Batterien und Flurfördergeräte. After its privatization as WERBAT GmbH, the hydroelectric plant was sold in 1995 to a private owner. In 2002 it was sold back to the town, who operate it today as a technical monument. The water taken from a weir below the inn along a 1.7-kilometre enclosed channel to the screen house, where suspended solids are filtered out. Behind that, it drops over a 160 metre long penstock to the hydroelectric power plant. The current is generated by two Pelton turbines. Concentration subcamp On the site of the former granite and gravel plant, which has been used since 1944 as the Steinerne Renne Brickworks and for the construction of parts for aircraft engines, a subcamp of the Mittelbau-Dora concentration camp was built. Initially French, Belgian and Italian forced labourers worked in the subcamp. Later 500 prisoners from the former subcamp on Veckenstedter Way in Wernigerode worked here. One day before the occupation of the camp by American troops on 10 April 1945 they were sent on a death march to Leitmeritz. References External links Die Steinerne Renne at www.harzlife.de. Harz WSteinerne Renne Saxony-Anhalt Landforms of Saxony-Anhalt Waterfalls of Germany Protected areas of Saxony-Anhalt