The Lusatian Border Ridge[1] (German: Lausitzer Grenzwall), also called the Lusatian Border Wall,[2] is a natural region in Saxony and South Brandenburg.
It lies not far from the town of Weißwasser and is bounded in the south and west by the Muskau Heath and in the north by the Cottbus Sand Plateau.
The Lusatian Border Ridge and the Muskau Fold Arc consist of about 150,000 year old shove end moraine arcs of the Warthe Stage of the Saalian glaciation, that are characterized by several parallel valleys and ridges.
The heavily rounded to flat slabs are covered by areas of sandur in the south.
By historical times the coal seams in strata near the surface were already being exploited for fuel.