I think I accidentally walked this path last year. Is it right up at the top of the mountain? I was bored one day and walked up there from seven sisters. Got to about where the 2nd wind turbine is and walked off the trail down the mountain back home. Had no idea it was a special route
Yeah Roman road, runs up the whole valley from aberdulais up to Banwen then restarts at Coelbren and can take you all the way to sennybridge and beyond