Where is the Ahlsburg located?

It lies in the Landkreis Harz, Saxony-Anhalt, about 4 km west of Ilsenburg in the Ecker valley.

What remains of the Ahlsburg today?

Only remnants of foundations, low walls and the moat survive, no standing structure remains.

How old is the Ahlsburg?

It was probably built in the 12th century, though it is first documented in 1357 under the name Alerdestein.

Can the Ahlsburg be visited freely?

The site can be reached via a forest track, with no set hours or facilities since it is an open-air ruin.

Ahlsburg

Ilsenburg

Access

No visits on recordNo opening hours or ticketing found

Where: Ilsenburg

To make a day of it

Open within 20 km

Sleep nearby

Ahlsburg stands in Ilsenburg (Landkreis Harz), in Saxony-Anhalt, Germany. Recorded dating: 14th century. No visits are on record for this building.

The Ahlsburg, also known as Alerdestein, is the ruined site of a former Imperial castle overlooking the Ecker valley near Ilsenburg in the Harz mountains. Likely built in the 12th century on a rocky spur with steep granite cliffs, it belonged to Imperial territory and was linked to the Werla royal palace. Only fragments of foundations, low walls and the surrounding moat survive today. The main appeal lies in the wild setting above the river that once marked the border with Lower Saxony.

Written from Ahlsburg (castle)

What to know

No standing structures remain, only foundations, low wall remnants and a moat.
The site lies in a wooded area of the Harz, about 4 km west of Ilsenburg, reached via a forest track.
Visiting means a walk through woodland rather than exploring intact buildings.
The former Inner German Border once ran along the nearby birch pioneer forest.
There are no opening hours, fees or visitor facilities, as this is an unattended ruin in a natural setting.

Where this château is

Ilsenburg · Landkreis Harz · Sachsen-Anhalt

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This châteauChâteaux within 40 km

Address

38871 Ilsenburg (Harz)

Directions open from wherever you are, by car or public transport.

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5.0 / 5from 3 Google reviews

Heritage status: Protection status unknown
Period of construction: 14th century

In pictures

Frequently asked

Where is the Ahlsburg located?: It lies in the Landkreis Harz, Saxony-Anhalt, about 4 km west of Ilsenburg in the Ecker valley.
What remains of the Ahlsburg today?: Only remnants of foundations, low walls and the moat survive, no standing structure remains.
How old is the Ahlsburg?: It was probably built in the 12th century, though it is first documented in 1357 under the name Alerdestein.
Can the Ahlsburg be visited freely?: The site can be reached via a forest track, with no set hours or facilities since it is an open-air ruin.