Hertenstein Castle
[image:Hertenstein Castle, part of the moat 01.jpg|thumb|right|Hertenstein Castle, part of the moat]
[image:Hertenstein Castle, part of the moat 02.jpg|thumb|right|Hertenstein Castle, part of the moat]
Hertenstein Castle is a ruined spur castle approximately southwest of the village of Billingsbach, part of the municipality of Blaufelden, in the district of Schwäbisch Hall in the state of Baden-Württemberg, Germany.
Description
The castle is located on a steep hill above the confluence of two streams at an elevation of.The main approach of the castle to the northeast was protected by an long artificial moat running from the steep slopes to the north towards the neighbouring hill in the south. The moat is between deep. Out of the moat a mound rises which are the remains of the outer ward, followed by a drop of towards the inner ward. Inside the inner ward is a flat triangular area about long and wide, in the middle of which the remains of the bergfried are found. All that is left of the keep is a mound rising up to with a diameter of. The keep was built of rustication buckel stones.
Only the moat is clearly visible today as none of the castle's structures above ground have survived. The whole area is covered by dense woodland.