[nature reserve] The Bauerngraben, also called the Hungersee, is a nature reserve in Germany between Breitungen, Agnesdorf and Roßla in the South Harz. It is an intermittent lake of about 350 metres in length and 100 metres in width, into which the Glasebach disappears. A feature of this lake is its sudden disappearance from time to time, ... Found on http://en.wikipedia.org/wiki/Bauerngraben_(nature_reserve)