Lauchhammer is a town in the Oberspreewald-Lausitz district, in southern Brandenburg, Germany. It is situated on the Black Elster river, approx. 17 km west of Senftenberg, and 50 km north of Dresden.
Wikipedia https://en.wikipedia.org/wiki/Lauchhammer
Coordinates 51°28'9.401" N 13°45'46.927" E