Grube Berggeist, Historical lignite quarry in Brühl, Germany.
Grube Berggeist is a former lignite quarry in the southwestern part of Brühl, in the German state of North Rhine-Westphalia. Mining operations over many decades left behind a series of water-filled pits, the largest of which is the Berggeistsee.
The quarry received its operating permit from Prussian authorities in 1858 and grew into one of the area's main lignite production sites during the following decades. As mining declined, the land changed use entirely, with a large part eventually becoming the Phantasialand amusement park.
The name Berggeist, meaning mountain spirit, comes from German mining folklore, where underground forces were said to watch over workers in the tunnels. Today, the old extraction pits have filled with water and locals use the lakeside paths for walking and cycling.
Much of the former quarry is not open to the public because Phantasialand covers a large part of it. The southeastern section around the Berggeistsee is freely accessible on foot, with paths running along the water.
A power plant built on the site in 1899 supplied electricity to both the mining operations and nearby communities, which was rare for that time. It functioned as a self-contained energy source long before regional power grids became common.
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