Ydw Valley and Fron Road Geological Exposures are four separate areas displaying lower Silurian geology. They are a Site of Special Scientific Interest in Carmarthen & Dinefwr, Wales.
See also
editReferences
edit- "Ydw Valley and Fron Road Geological Exposures" (PDF). Cyfoeth Naturiol Cymru. Retrieved 1 May 2021.
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