Stenzel-Berg, Mountain summit in Königswinter, Germany.

Stenzel-Berg is a hill in the Siebengebirge near Königswinter, reaching 267 metres, with the Großer Ölberg rising 1.8 km to the northwest. Its slopes are wooded, and former quarrying has left bare latite rock faces that visitors pass on the trails.

The mountain served as a quarry from the 11th century until 1931, providing latite stone for significant buildings such as Bonn Minster. This long history of stone extraction shaped the landscape and left visible marks on the terrain.

The name Stenzelberg probably goes back to a local field name; the hill lies in the Siebengebirge nature park, whose protected status dates to 1959. Walkers pass dry-stone walls and old quarry terraces where latite was cut until 1931, and the open rock faces are kept free of trees so the dry grassland and its warmth-loving plants survive.

The hiking trails are secured with wooden railings and offer routes of varying difficulty depending on your choice. Proper footwear and caution on rocky ground are advisable, especially during wet weather.

The summit reaches 267 metres, about 1.8 kilometres southwest of the Großer Ölberg, the highest point of the Siebengebirge at 460 metres. Bonn lies roughly 10 kilometres to the north. The surrounding slopes are wooded, and the name appears in older sources as Stenzelberg.