On the Ness of Brodgar website, in the first of Sigurd Towrie’s article on long cairns, one such is suggested as possiby being one on Outer Holm. There is a long low hillock next to the circular remains of a mill mound, but a look on Bing Satellite holds out little hope, all I see is a few very linear features on the ‘site’ – pity as I often photograph the place.