Geophysics has revealed that thiis is not a chambered cairn but more like Silbury Hill, as with a site at Dunragit in Dumfries and Galloway, the BA cist and animal bones from ?feasting towards the top being later additions http://www.orkneyjar.com/archaeology/saltknowe.htm
This Barrow is huge – approximately 30 metres across x 3 metres high.
An information board stated that it has never been excavated and it is thought that there may be a passage grave inside. The barrow is comparable in size to Maeshowe.
I see Wideford states it has been surveyed so the info board is out of date.
You get a good view of the Ring of Brodgar from the top of the Barrow.
I couldn’t see ant trace of the cist – perhaps it has grown over?
Behind the Ring of Brodgar in the RH corner of the field there is a cist-like structure at the top of this mound, though all I could locate on my visit was the turf-covered edge of a long horizontal slab at the side facing the loch. During an excavation nine pieces of silver 'ring-money' were found.