A great place, a must to visit whenever you are nearby. The reserve was established in 1997. It covers an area of 13.33 hectares and is called "Gagaty Sołtykowskie". The middle-forest gravel road will lead us to the car park, from where the trail is quite well marked with boards and will lead us to the reserve.
It is an old closed clay pit where in the mid-70s of the last century one of the major geological curiosities of the region was found - jet. The jet occurred as a fossil accompanying the basic mineral which was ceramic clays. There is a bit of a conflict here with the classification of the jet. One thing you have to admit - he's definitely a rock. And the term fossil probably comes from the fact that it perfectly reproduces the shape and structure of the wood from which it was made.