The village lies to the northeast of Corwen on a hill above a small river, Afon Morwynion, and is situated in the ancient commote of Iâl (Yale).

[1] The community covers an area of 9.45 square miles (24.5 km2) and extends to the top of Llantysilio Mountain.

The village church is dedicated to Saint Tysilio, a Welsh Prince and Bishop, son Brochwel Ysgithrog, a King of Powys of the House of Gwertherion.

[10] The abbey was founded by the Prince of Powys Fadog, Madog ap Gruffydd Maelor, Lord of Yale and Dinas Bran.

[10] To the northeast of the village stands Plas yn Iâl, the ancestral home of the Yale family which included Gov.