There once was a goat named Kare - over a millenium of mining at Falu Gruve, Sweden

The Falun Mine, Sweden's Great Copper Mountain, hosts one of the world's oldest and most significant copper deposits, with a history spanning over a millennium. The mine's geological setting is dominated by 1.8 to 1.9 Ga Palaeoproterozoic metavolcanics, including leptites, mafic, and intermediate metavolcanics, as well as metasediments like mudstone, turbidite, and greywacke. These rocks were deposited in an extensional back-arc environment and later deformed during the Svecokarelian Orogeny. The ore deposit is primarily hosted in the Leptite Formation, characterized by quartz-rich 'ore quartzites' and mica schists, along with calcite and dolomite marble, and skarn. Seven distinct types of ore are recognized at Falun. Declared a UNESCO World Heritage Site in 2001, the mine offers guided tours and surface visits, providing insights into its rich history and geological significance.

Brandes, N., & Brandes, P. (2016). There once was a goat named Kare - over a millenium of mining at Falu Gruve, Sweden. 2016 New Mexico Mineral Symposium, Proceedings Volume. https://doi.org/10.58799/nmms-2016.527