Set upon high ground to the south of Merthyr Mawr Warren and its plethora of historic and prehistoric human settlement sits the probable ploughed out remains of a causewayed camp.... presumably discovered by air survey.
Hence nothing tangible to see at ground level, but I guess the fact that it can still be determined is enough.
Coflein has quite a bit of related text at:
coflein.gov.uk/en/site/90000/details/NORTON%2C+INTERRUPTED+DITCH+ENCLOSURE/
