The Saargau was a Frankish gau county that is recorded as early as the 7th century and, at that time, also included that part of the Saar valley which is today in France.
It begins in the south near Berus, runs northwards along the French border, from the Saarland over to the neighbouring state of Rhineland-Palatinate.
To the west, towards Lorraine and over the Franco-German border, the gau landscape is rather flat and broad with gently rolling hills.
In the area of the villages of Borg, Oberleuken, Büschdorf, Eft-Hellendorf, Sinz, Münzingen, Kesslingen and Faha crops are grown and it is described as the breadbasket of the Saarland.
This intensively farmed region extends into Rhineland-Palatinate which borders it to the north, especially around the villages of Merzkirchen, Fisch and Mannebach (near Saarburg).