The Kathagenberg, part of the Weser Uplands, is located in the west of the Solling low mountain range, in the village of Fürstenberg.
It stands out from the flat slopes of the Solling and falls as an impact slope towards the Weser.
The formation of the Kathagenberg begins about 250 million years ago, when river systems washed up the debris from the south. Over the course of millions of years the deposits solidified and the red sandstone was created, which can still be seen in the old quarries below Fürstenberg. Sandstone was mined here until the middle of the last century.
The Weser cut into the subsoil for about 1 million years and sealed off terrace gravel. The repeated alternation of deposits and erosion was ultimately responsible for the relief of the Kathagenberg. Remnants of the higher, older river terraces at the level of the village of Fürstenberg have been preserved.