Steinacleit is a prehistoric archeological site on the west coast of Lewis in the Outer Hebrides of Scotland. The site consists of an array of boulders which marks what is left of a chambered cairn, and possibly shows the site was overlain by a huge hall. There are ten large stone slabs surrounding the central mound. Folk legend of the Outer Hebrides states there was probably a battlefield near the location. The site is 50 feet in diameter and oval in shape. The age of the site is debatable and according to different sources ranges from 1800–1500 BC or 3000–1500 BC.
The standing stone Clach an Trushal is visible to the south west from the stone circle.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.