This former Tertiary volcano rises in the northwestern part of the state of Rhineland-Palatinate, around 2.25 kilometres (1.40 mi) east of its border with North Rhine-Westphalia and belongs to the volcanic region of the High Eifel.

The basalt cone is surrounded by the small nature reserve of Aremberg.

A section of the middle reaches of the River Ahr flows past the Aremberg to the east; to the north an Ahr tributary, the Eichenbach, flows around the mountain.

On the summit are a few ruins belonging to Aremberg Castle, once a mighty fortress, below and north of the mountaintop runs a section of Roman road.

A section of the Nürburgring-Nordschleife racing track, from which the Aremberg can be seen, is named after the mountain.