Krupka (Czech pronunciation: [ˈkrupka]; German: Graupen) is a town in Teplice District in the Ústí nad Labem Region of the Czech Republic. It has about 13,000 inhabitants. It is located on the border between the Most Basin and Ore Mountains. The most populous part of Krupka is Bohosudov, which was a separate town until 1960. The founding and development of Krupka is connected with the mining and processing of tin ore. The town is part of the Ore Mountain Mining Region, a UNESCO World Heritage Site. The centre of Krupka is well preserved and is protected as an urban monument zone. The most important monument in the town is the Basilica of Our Lady of Sorrows, protected as a national cultural monument.