Striking is the breakdown of vegetation: the summit is covered with lean lawn and some solitary Tilia.

However, it does not correspond, despite its striking cone shape the Ashes volcanoes on the type of Etna or Vesuvius.

Before about 17 million years ago there came here to massive gas and dust explosions when percolating water met in the columns of the Jura on a magma bubble that had formed in the depths.

The up broken rocks fell back into the crater and solidified over time to basaltic.

The Basalttuffpfropf was more resistant than the surrounding limestone and remained as the northern slope of the Swabian Alb mountain upstream cone stand and testified that this formerly extended further to the north.