Natural forest, Nonnenstromberg

Nature Reserve

The Siebengebirge has been a nature reserve for a long time. Today, many endangered plants and animals have found a home here, and there are strict rules to ensure that they can live in peace.

Sycamore maple

Siebengebirge trees

If the Siebengebirge was untouched nature, most likely the beeches would be predominant in the woods. This post shows some native trees from our region. Where what kind of tree grows best depends on several factors. Is it an upland or lowland area, is it warm or cool there, is the soil rather moist or dry, and what is its […]

Wilderness Siebengebirge, sister beech and brother woodpecker

Wilderness Siebengebirge

In large areas of the Siebengebirge we leave nature be, that is wilderness Siebengebirge. “A home for sister beech and brother woodpecker”, as Francis of Assisi might have put it.

Thistle, Heisterbach Abbey

Siebengebirge Flowers

This post shows some native flowers from the Siebengebirge. In the shade of the ruins of the Heisterbach, beautiful flowers grow, among them rare ones like the wild tulip. If you walk around Mount Lohrberg in June and July, you will see bright purple digitales in front of and between the deep green conifers. Colorful flowers also sprout in the […]

Weilberg, Siebengebirge, Königswinter

Volcanic Origin

The Siebengebirge is of volcanic origin. Here were are at at the geological outcrop at Mount Weilberg,, and abandoned quarry. You can see the different rock formations, and geologically trained people can use it to understand how a region was formed and what it has gone through over millions of years. About 30 million years ago, in the Oligocene and […]


Siebengebirge – earth history

The Siebengebirge is about 30 million years old. That’s beyond a human’s imagination, yet in geological terms, earth history, it’s just a blink of the eye. Cenozoic Quartiary Holocene (10,000 years ago – today) Since the beginning of the Quaternary, the plants and animals are similar to ours today, only a few species highly adapted to the Ice Age did […]

Dinosaur at Nassenplatz, Siebengebirge (collage). Dinosaurs Siebengebirge?

Did the dinosaurs know the Siebengebirge?

The Siebengebirge is over 30 mio. years old. That is unimaginable for us, we are looking for clues. Did dinosaurs live in the Siebengebirge? The Siebengebirge came into being about 30 millon years ago. 30 million years .. this age seems beyond human imagination, yet in the context of earth history it is just a moment. Diplodocus, whom you see […]

Königswinter around 1900, quarries


For centuries, trachyte, latite and basalt have been mined for in the Siebengebirge. The quarries almost destroyed our region. Hardly anything has remained of Mount Stenzelberg, which today is an abandoned quarry. The same goes for Mount Weilberg, an abandoned quarry and natural monument. Trachyte from Mount Drachenfels Already the Romans mined for trachyte at Mount Drachenfels. In Bonn and […]

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Nature Park Siebengebirge

Here were are in the Nature Park Siebengebirge, one of Germany’s oldest nature reserves. Do you hear the birds sing? Hikers enjoy the varied landscape, and a flora and fauna with many species. Flora and fauna Besides the donkeys at Mount Drachenfels, the fire salamander is one of the “landmarks” of the Siebengebirge. If you are lucky, you may hear a […]