Langendreer is the most populous district of the city of Bochum in the Ruhr area in Germany. Langendreer is between Dortmund, the largest city of Westphalia and Langendreer-Alter Bahnhof, another district of Bochum. Langendreeer includes Kaltehardt, a mainly residential area. Langendreer is in the East of Bochum. Wikipedia