Afon Ceirw (Destroyed)

The 1:25000 map confidently states there is a cairn circle here, Coflein says there was once a cairn here but is now mostly destroyed, precisely they say.....A vague, turf-covered rise, c.12m in diameter & 0.2m high, showing a few scattered stones, remains of a mound levelled in 1951.
I couldn’t even see that, there’s nowt left of it at all, please don’t turn up expecting to see something cool, it has gone, I’ve been so you don’t have to.