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 Brithdecr (Brithdir) Hamlet It begins where Bargoed River goes to Rhymney by Aberbargoed Bridge then along the River Bargoed upwards till it comes very near the way upon the Common that leadeth from Keven y Brith decr to Twyn y Wayn then directly eastwards to the three stones in the Heath below Twyn y Wayn between Merthyr and Gellygaer then directly to the E sid Twyn y Wayn then directly to Fynnon Gwellin then to the old water pond in Pantywayn Coal pits then directly to the spring head of a Brook called Nant y Glynon then to Pwll Elwch Uarc then to Carn y Clyndir or Mark Ycha then to Carn Helig then to Rhyd y Milwr on the River Rhymney then along the River Rhymney to Aberbargoed Bridge aforesaid. The foregoing boundaries were perambulated the 24th day of May 1750 by George Parry Curate of Gellygaer, William Perrott Churchwarden, Edmond LLewelyn of Garthgynyd, George Williams of Carno, Henry Thomas of Brithdee, Thomas Lewis of Keven Bach, David Evans of Blaen Rhymney, Moses David of Pitwellt, Lewis Edwards of Ysgwyddgwyn and several others of the Parishioners of the said parish. Origin of the name It was identified as Brohru Carn in the 12th century, and a reference to Fforch y Rhiw is made in the book Parish of Gelligaer by T.V. Davies, in the section dealing with Roman History and the route of Heol Adam. It states that “The holding called Fforch y Rhiw is mentioned in several Gelligaer leases of the 17th century. The name probably arises from a number of old tracks in the Brithdir Hamlet which tend to converge near Fochriw”. It has also been known as Boch Rhiw Carn, Ffochreiw, Fochrhiw, Vochriw, Vochrhiw, and, currently, Fochriw. The interpretation of the name from an my original Fochriw family was Foch Y Rhiw Pentwyn Mawr which translates in English to : the cheek of the slope of the head hill (Pentwyn Mountain). This seems to describe the village's actual location. In ancient times By