Baroque redoubt with dry stone wall

I initially researched what exactly that was without any results. Who will clarify?
I have now found out that it is a baroque "jump" with dry stone walls.
The facility is located near the Prechtaler “Schanze” / Haselberg wind turbine

Further along, you'll also see a stone wall. It was once a fortification.
Today, it's a nice place to take a break.

The "Baroque Schanze Prechtal" refers to a defensive fortification (Schanze) in the Black Forest built during the Baroque period (circa 17th century) to protect the Prechtal Valley and the surrounding areas from French invasions. These fortifications were part of a larger defensive system along the Black Forest, stretching over 200 kilometers and securing strategically important roads and crossings.Specifically, the Schanze in the Prechtal referred to a fortification located on the watershed between the Elz and Gutach rivers, which was intended to prevent the crossing to Hornberg, as reported on a website about the Baroque fortification. The Prechtal Valley was connected to the Black Forest via the Kinzig Valley, and therefore securing this area was of great importance.