Expedition to a gravel pit with GEPN

The Exploring Podwarszawskie Diving Group invites you to another exciting diving trip in search of interesting places in the Mazovia region. This time, the aim will be the surroundings of Pułtusk, and specifically the village of Gnojno located north of the city.

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The Gnojno Reservoir is a large post-gravel pit. It is about 1 km long and 300-600 m wide. Its origins date back to the 1960s and the gravel and sand extracted there were used to build a large part of Bródno and a piece of Ursynów. The material was transported by water, via the Narew and Żerański Canal.

After its exploitation it was a kind of a huge bay, partly separated from the river by a long, narrow, high island. The calm current, considerable depth and hard substrate, combined with clean, well-oxygenated water, created excellent conditions for sooty breeding of zander fry for many years. Everything came to an end in the eighties. The dike in the north-eastern isthmus was dug up, leaving only a narrow connection with the river on the southern side of the pit. In this way a reservoir of still water was created. Very clean and very fishable.

Unfortunately, exploitation at the beginning of the 1990s, combined with poaching, led to a radical impoverishment of the ichthyofauna at a fairly rapid pace. Anglers have also contributed to this to a slightly lesser extent.

According to information on fishing websites, the depth varies from 1.5 metres to about 10 metres in the bay near the islet. The average depth is 3-4 metres.

More information can be found on www.gepn.pl i facebook.com/GEPN.POLAND

Source: Organiser