The Renneckenberg is a mountain, roughly 933 metres high, in the High Harz part of the Harz mountain range of central Germany within the borough of Wernigerode in the state of Saxony-Anhalt.
Wikipedia https://en.wikipedia.org/wiki/Renneckenberg
Address 38871, Germany
Coordinates 51°47'26.34" N 10°38'58.81" E