The famous Gipslöcher nature reserve is the starting point for a unique geological educational trail about the formation of the doline karst landscape of gypsum holes.
220 million years ago, the Oberlech area was located near the equator and the coastal area consisted of lagoons that were constantly flooded. Under the relentless power of the sun, the remaining seawater evaporated, leaving behind gypsum formations. When the tectonic plate on which the region rested collided with the European one, the lagoon sediments were pushed up. Today, we can marvel at these unique landscape features and sinkholes, which are unique in all of Europe. With more than 1000 sinkholes, Lech’s gypsum holes are a marvel without compare. Those fascinated by the sinkholes while exploring the nature trail should take the time to occasionally appreciate just how beautiful the entire area really is.