Château du Grand-Arnsbourg

The medieval fortress stands on a sandstone ridge formed by two separate rocks, with a square keep dominating the northern section.

Frederick the One-Eyed, Duke of Swabia and Alsace, ordered the construction of this castle in the early 12th century to protect Haguenau.

The castle architecture demonstrates medieval military engineering techniques, incorporating natural rock formations into defensive structures with movable ladders for access.

While the ruins remain closed to direct access, visitors can observe the castle from designated paths near Untermühlthal at an elevation of 473 meters.

A fault line divides the castle's foundation rocks, creating two distinct platforms that determined the layout of the defensive structures.

Location: Baerenthal

Inception: 12 century

Address: Forêt domaniale de Philippsbourg

GPS coordinates: 48.95139,7.56139

Latest update: June 23, 2025 10:01