In the vicinity of Łagów, between Czyżów and Bardo, there is the Świński Ryj hill (396 m above sea level). Its slopes fall down to the forested Prągowiec ravine.
This place is difficult to find, but it is worth the trouble - it is extremely easy to come across the fossil remains of animals from the ancient geological past. In the gorge, some 400 million years old Silurian slates are exposed. You can see black lines on them - these are extremely abundant fossils of tiny creatures called graptolites, from which the name of the local rocks comes - graptolite shales.
To the ravine from Łagów you need to go along Bardzka Street through Sędek to Czyżów, where in front of the house no. 74 (next to the village common room) you need to turn left into a side road that goes down to the foot of Mount Świński Ryj. At the end of the asphalt road, you can leave your car and cross the stream by a side road. After 50 m, the road climbs the slope to the right - you have to go straight down the overgrown dirt road down the stream, then cross the meadow at the bottom of the valley. Behind the meadow, you can find a stream bed overgrown with weeds, along which a rather unclear path leads to the left, straight to the Prągowiec Gorge.