There is an old Ordnance Survey benchmark on the large stone at the base of the wall of this sheepfold in Dyffryn Afon Caseg. See also: [[5328009]]. For more details see: http://www.bench-marks.org.uk/bm83164
Uploaded to Geograph by Meirion on 27 March 2017
Photo © Meirion, 27 March 2017. Licensed for reuse under this Creative Commons licence