Olbernhau is a town in the district Erzgebirgskreis, in the Free State of Saxony, Germany. It is situated in the Ore Mountains, 35 km southeast of Chemnitz, and 23 km north of Chomutov, Czech Republic.
Wikipedia https://en.wikipedia.org/wiki/Olbernhau
Coordinates 50°39'23.051" N 13°20'42.871" E
