Explore details about location Clos Tir Twyn. Clos Tir Twyn is a location situated within the Gelligaer alongside other areas such as Heol Brynteg, Hengoed Parc, Coed Yr Haf. Additionally, some smaller parts of Clos Tir Twyn include specific areas like Twyn Road, Nant Twyn yr Harris adding to the diversity of its landscape.