[1] The Heide-Itzehoe Geest was pushed up during the Saale glaciation[1] and so belongs to the geologically oldest areas in the state.
It is clearly demarcated, particularly in the west, for long stretches along the old coastline, recognisable by its prominent cliffs (Kleve).
The southernmost part is the Münsterdorf Geest Island south of the river Stör and north of the Krempe Marsh.
For an old moraine landscape the Heide-Itzehoe has relatively large height differences.
At just under 80 metres above sea level the highest elevations on the west coast of the state are found on the Heide-Itzehoe Geest.