The summit of this mountain is formed by a six-metre-high crag made of bunter sandstone with a flat top, 25 m² in area, from where there are good views.

The Bernsteinfels crag and its surrounding area were declared a natural monument on 5 Nov 2007 by the towns of Gaggenau and Bad Herrenalb due to its rock formations, which are unique in the region, and its geological-tectonic and natural importance, and were given protected area number 82160150001 by the Regierungspräsidium Freiburg.

These mighty sandstone blocks are a consequence of the formation of the Upper Rhine Graben, whose sinking began about 50 million years ago.

The hollow spherical formations (Kugelsandstein) on the southwest and northeast faces of the Bernstein rock are the remaines of geodes that were formed here once.

It also gives the position of sunset on the visible horizon at the summer and winter solstices as well as at the equinoxes, with dates and times.