Krupka Castle, Castle ruin in Krupka, Czech Republic

Krupka Castle is a ruin of a Gothic castle on a rocky spur above the Horský potok stream at 350 metres, in the centre of Krupka. Its core is a rectangular layout with a flat-ceilinged donjon on the north side; a late-Gothic shield wall 6.5 metres thick with a gun chamber and a round tower survives on the south.

The fortress was first documented in 1330, when it served as a defensive outpost monitoring the mining regions around Krupka. At that time, the area was a major center for tin extraction, and the castle helped protect these valuable economic operations.

The castle was also called Rosenberg, after the roses that once grew on its slopes and in the castle garden. On the south side, a viewing platform holds a monument commemorating Goethe's visit to Krupka. The site is a stop on the cross-border mining educational trail around Krupka.

The castle stands on a rocky spur above Krupka, reached on foot from the town; the Bergamtshaus courtyard now holds a hotel and restaurant. On the south side a viewing platform looks over Krupka and its churches, and a monument there recalls Goethe's visit to Graupen. The site is a stop on the cross-border mining heritage trail around Krupka.

The castle was part of a network of defensive structures specifically built to protect the important mining operations in the Ore Mountains region. This mining area is now recognized as a UNESCO World Heritage site, showing how fortifications were connected to resource extraction.