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Ringses Camp, Beanley Moor
Hillfort
Internet Archive

Notes Archaeological, Geological, etc. on Beanley Moor and the vicinity of Kemmer Lough. From the MSS of George Tate. In the History of the Berwickshire Naturalists Club, volume 23, 1890.

He mentions the carved stones, and also the ‘detached blocks of stones which are usually covered over with lichens, and hoary with age, are here called “Grey Mares”.‘