This region is bordered by: Lake Lucerne in the south-west; the Klausen Pass, upper Linth valley and Lake Walen in the south; the Rhine valley in the east; Lake Constance in the north.
The border between the Central Eastern Alps and the Southern Limestone Alps is the so-called Periadriatic Seam.
The Northern Limestone Alps are separated from the Central Eastern Alps by the Grauwacken Zone.