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Which underground pathways do the surface streams follow that disappear in the Ybrig mountains? And where do they reappear as springs?
The limestone mountains of the Ybrig contain an extended karst cave system. Martin Lüthi and his master student Domenika Bucher, together with local cave explorers, investigated the underground pathways of the streams with tracer experiments (photo: Andreas Dickert). The Einsiedler Anzeiger reported on their research results. Einsiedler Anzeiger (PDF, 5 MB)