Alte Burg is a large Celtic hilltop fortification, or hillfort, that may have been used as a cult or assembly site for the regional population.

It is located 9 kilometers from a major settlement of the Hallstatt and early La Tène period, the Heuneburg.

The Alte Burg lies on a long spur of the hill Burgberg, at an elevation of around 695 m above NN, at the southern edge of the Swabian Jura.

The Heuneburg, a major settlement of the Hallstatt period overlooking the Danube, is about 9 kilometers to the south east.

The remains were originally interpreted in a medieval context, as the border between Langenenslingen and Emerfeld, and between Württemberg and Hohenzollern followed the central wall.

Towards the valley the plateau is flanked by two terraces, 15 (north west) and 20 meters (south east) below the top.

The middle rampart, located on the exterior side of the moat, was at least 1.8 meters high and was built mainly from limestone.

Another large settlement so close to Heuneburg is also deemed unlikely and the pit points to some form of cult activity.