Fohnsdorfer Becken#
Fohnsdorf Basin, Upper Styria, widening of the Mur valley in the Aichfeld Plain in the north and the Mur/Mura floor in the south, a 22 kilometre-long basin formed in the Tertiary period Norische Senke Depression, in the past the Fohnsdorf Basin was economically significant due to its lignite deposits ( Fohnsdorf).