• Important to note: These are old open-pit mines from the era of German division. Back then, the GDR didn’t waste any resources on reclamation; instead, it simply shut off the pumps that had kept the pits dry. As a result, they filled with groundwater, and the pyrite contained in the coal seams weathered into sulfuric acid. Long story short: The lakes had to, and still have to in many cases, be heavily limed for renaturation or to make them usable again, since the pH level naturally hovers around pH 4.

  • Oh what’s this! A gold nugget! By the coal lakes!

    … 3 months later; Germany is digging up old mines that have gold in them.