At around 1000 m above sea level. NHN on the northeast slope of Lemberg lies the cave or crevice known as Jungfrauenloch in the White Jurassic rock. The name can be traced back to a local legend.
Sinkholes are funnel-shaped depressions in the ground created by the collapse of the overburden into subterranean cavities. The Waltershöhle is one such sinkhole. The shafts were formed when seepage water …