Ruine Lengenfeld

Beuron, Germany, Germany

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Ruine Lengenfeld near Beuron, Germany, is the scant ruin of a 12th-century spur castle perched on a steep limestone cliff at 770 meters elevation, about 2400 meters southwest of Hausen im Tal church and directly opposite Schloss Werenwag across the Danube.

Measuring roughly 16x16 meters, the tiny core fortress features minimal surviving walls up to 1.5 meters thick—primarily small-quarried stone with larger blocks in the northwest corner, including a notable rounded edge quoin—plus a narrow neck ditch, outer rock-cut ditch, and hints of a possible donjon and gate suggesting a residential tower layout.

Likely linked to the nearby high-plateau village of Lengenfeld, its builder remains unknown amid the strategic Upper Danube Valley, with overgrown remnants now accessible only to determined hikers exploring the Swabian Alb's remote fortifications.