[1] The village of Astert, Limbach, Heuzert, Heimborn, Stein-Wingert, Idelberg and Helmeroth belong to Kroppach Switzerland.
Geologically the region was formed by the River Nister, flowing from the High Westerwald, carving a winding course deep into the undulating countryside over thousands of years.
Kroppach Switzerland is part of the Nister Valley (Nistertal) protected area, designated in 1969.
Among the best known are the Westerwaldsteig, the Marienwanderweg – an old pilgrims' way, which links the Cistercian abbey of Marienstatt with the Franciscan abbey of Marienthal - and the educational path on the so-called “End of the World (Ende der Welt) near Stein-Wingert.
The main access points into Kroppach Switzerland are Hachenburg, Kroppach/station Ingelbach and Wissen.