It lies above the village of Erlenbach bei Dahn in the county of Südwestpfalz in the state of Rhineland-Palatinate.
The fort lies at a height of 322 m above sea level (NN) on the northern slopes of the 402-metre-high Nestelberg.
This outwork enabled a piece of open ground known as the Leichenfeld ("Corpse Field") to be covered by a crossfire from two directions: from the north (Berwartstein) and from the south (Little France).
Its walls are 3.20 metres thick; and some of the stone ashlars show evidence of lifting marks, possibly from a three-legged lewis.
The roof platform was wide enough to deploy culverins whose longer barrels increased their accuracy.