Dubník, Mountain summit in Prešov District, Slovakia.
Dubník is a mountain summit in the Slanské vrchy range reaching 874 meters with mineral deposits scattered across its slopes. The terrain displays geological formations shaped by both natural processes and historical extraction activities.
Recognition came in the 16th century when miners discovered substantial opal deposits, sparking intensive extraction operations. Mining continued until 1922 when the operations ceased, marking the end of an era of intense activity.
The mountain has shaped local identity through its mining heritage and continues to draw visitors interested in geology and the region's industrial past. The visible scars of extraction work across the slopes serve as reminders of how deeply this place was connected to people's livelihoods.
Access is available through marked hiking trails, with the main route starting from the nearby village of Červenica. Visitors should prepare for uneven terrain and steeper sections created by the mountain's mining history.
The mountain is home to Europe's oldest opal mines, where a exceptional precious opal weighing 594 grams was discovered in 1670. This find remains the largest ever recovered from the continent and is recognized worldwide by geologists and mineral collectors.
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