History
Slippy Stones does not really qualify as a Post Office SHF site but was used between November 1956 and November 1959 to provide a television link to feed the BBC Sandale transmitter. The Post Office Engineer in Chief's Report for the year ending March 1957 comments that portable 4 GHz equipment was used and a temporary station established to meet the required in-service date. Someone who worked at the site notes: ...consisted of a wooden hut mounted on sawn off stout telegraph poles set into holes blasted into the bare rock.... The station received Pontop Pike off-air and remained in service until a similar link was provided via the permanent site at Hopealone.
The precise location is not known but was reported as ...near to Ventnors Hall coal drift. The Durham Mining Museum suggests this was also known as "Robin Rock Drift". A local high point identified as "Slippy Stones" lies just to the south east, adjacent to a road. It is unlikely any trace of the site remains.
