Nant Crew Inscribed Stone is a pillar stone circa 5ft high, square in section, with Latin inscription on its West face and incised cross on its North face. The stone had been used as a gatepost, but some time after its discovery, in 1957, North of the Cartref Reservoir, the stone was moved into the porch of Cefn Coed Church.
Source: Cadw scheduling description. RCAHMW 21.05.2008