ボーフムの天然記念物・トップ20

Located next to the motorway, yet so quiet...

Time to relax

Let your soul unwind

You have to look closely not to miss the stone. A parked car is enough.

The towpath is a beautiful and informative excursion destination and the view of the Ruhr is always great

Sign from the city of Bochum: The Blumenkamp is a body of water typical for the region: many of the tunnels of the Hannover mine collapsed below us one after the other. Slowly but steadily the earth sank, a total of over ten meters, down to the groundwater level. A subsidence lake was created. Subsidence may be a problem for us humans, but it can be a stroke of luck for animals and plants. An amphibious alder-willow swamp forest is developing in the lake: the trees have roots in the water. Duckweed floats on the surface, and cattails grow in the edge area. Mallards, Egyptian and Canada geese, and also coots and moorhens can be observed here. If you're lucky, you'll see a little grebe or kingfisher. The marsh warbler is unmistakable. Amphibians living here include common toads, grass frogs and green frogs. Sometimes you can hear the "bell sounds" of the midwife toad. There are also alpine and smooth newts. And unfortunately also turtles that were illegally released. Almost all nutrient-rich mountain subsidence waters have to live with one problem: they have no inflow or outflow, heat up considerably in midsummer and then suffer from a lack of oxygen. The pond can even dry out at times. Sometimes, in an emergency, fresh water is added to save the amphibians. The water usually recovers quickly.

You drive right past because the stone is only about 30 cm high and is on the footpath at the edge of a property. Parked vehicles don't make it any easier to see. What would have happened if the center point had been right on the street?😉

Beautiful water, unfortunately very crowded.