Bwlch: Bwlch is a small village on a col between two hills, where the present day A40 road now runs, between Brecon and Crickhowell in Powys, southern Wales.
Sefyll Yn y Bwlch: Cymru A'r Mudiad Gwrth-Fodern: Astudiaeth O Waith R.S. Thomas, Saunders Lewis, T.S. Eliot a Simone Weil (Meddwl A'r Dychymyg Cymreig)