Freiberg (German for "free for mining activities") is a university and mining town in the Free State of Saxony, Germany. It is a so-called Große Kreisstadt (large county town) and the administrative centre of Mittelsachsen district. Its historic town centre has been placed under heritage conservation and is a chosen site for the proposed UNESCO World Heritage Site known as the Ore Mountain Mining Region. Until 1969, the town was dominated for around 800 years by the mining and smelting industries. In recent decades it has restructured into a high technology site in the fields of semiconductor manufacture and solar technology, part of Silicon Saxony.