Schauinsland Pit
Freiburg im Breisgau, Germany
The Schauinsland Pit (Grube Schauinsland, or Erzkasten in the 19th century) was a silver and lead mine east of Freiburg im Breisgau. From the 19th century zinc was also mined. The mine operated from the 13th century until 1954. Since 1997 Schauinsland Pit has been a show mine.
Mine data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).