"It begins where Nant Goch goes to Bargoed by Pont Cradoc then along Nant Goch upwards to the stone standing on the Common opposite Mardy Bach house then from that stone directly westward along the old ditch to the Highway that leadeth from Pen yr Hrwl Ddu to Pen y Bryn Oie then along the way to Trosater Henla then to Three Great Stones standing in the Heath below Twyn y Wayn between Merthyr and Gellygaer then directly eastward to Bargoed River little below the way that leadeth from Keven y Brith"