former mining pond in the Rudawy Janowickie
Purple Pond is the smallest and most photographed of the Coloured Ponds in the Rudawy Janowickie, in Lower Silesia. It lies at about 560 m above sea level, surrounded by the high rock walls of a former quarry, within the Rudawy Landscape Park. Its name comes from the water's intense purple-violet colour, which stands out strikingly against the surrounding green forest.
The pond formed in the flooded workings of the former Hoffnung (Nadzieja) mine, opened in 1785. Until 1925, pyrite-bearing shale was extracted here and processed into sulphuric acid in nearby Płoszów. The water's distinctive colour comes from iron and copper compounds, chiefly pyrite, lying in the bed and walls of the workings - which is why the water is strongly acidic. In 1997, during the "flood of the millennium", the natural dam of the workings was breached and the water flowed out towards Wieściszowice. Over time the workings filled with water again and the pond regained its present appearance. Traces of mining, such as adits and spoil heaps, are still visible around the pool.
Because of the water's acidity and the site's mining origins, swimming is not practised here - the pond is treated as a viewpoint and the destination of a short walk, not a bathing spot. A marked path runs around it, linking it to the other Coloured Ponds, from where the route can continue towards Wielka Kopa.
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