Black Trout Adit, Underground water drainage tunnel in Tarnowskie Góry, Poland.
The Black Trout Adit extends 600 meters underground at a depth of 30 meters, featuring two entry points named Ewa and Sylwester shafts.
The tunnel, constructed for silver mine drainage in the region, became part of the Friedrich Mine complex during the late 18th century industrial expansion.
This underground passage represents the mining heritage of Upper Silesia and stands as a testament to 19th-century engineering achievements.
Visitors explore the tunnel through guided boat tours that last one hour, traveling between two vertical shafts in the underground water system.
The tunnel received its name from dark-colored trout that would swim in from the River Drama through the water drainage system.
Location: Tarnowskie Góry
Part of: Industrial Monuments Route, Friedrich Mine Deep Adit
GPS coordinates: 50.42952,18.78224
Latest update: May 16, 2025 00:30
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