"The Finstergrund Pit (German: Grube Finstergrund) near Wieden in the Black Forest in Germany is an abandoned medieval silver and lead mine that was also used ...
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in the modern era to extract fluorite and baryte. Since 1982 it has been used as a visitor mine." - (en.wikipedia.org 04.12.2021)
- Latitude47.832897186279
- Longitude7.9032001495361