History Oeschinensee

Lake Öschinen was formed by several landslides on the flanks of the Fründenhorn and the Doldenhorn. The masses of debris that broke off on the Doldenhorn at an altitude of 2100 meters formed a natural dam with a volume of well over one hundred million cubic meters. The rock material is still permeable to water today, which is why the Oeschinensee is drained underground. Since 2007, Oeschinensee has been part of the extended Swiss Alps Jungfrau-Aletsch UNESCO World Heritage Site.