Rubha nam Brathairean quern quarry is on the shore below a small headland jutting out from the Trotternish Peninsula. It was only identified in 2007. The date is unknown but there were many hundreds, possibly thousands taken from this spot, which is very difficult to access and is largely covered twice a day by the tide. The querns are very consistent in size. I measured quite a number of the blanks and most were 43cm in diameter. They seem to range up to this from about 35-38cm.
To my mind, this is a Viking-age quarry. It is avery similar to others such sites in norway - notably the Hyllestad World Heritage Site.
I believe this is the first photogrammetry modelof a portion of the quarry.