Tremeirchion is a small village on the eastern edge of the Clwydian Range Area of Outstanding Natural Beauty, a little to the east of St Asaph. Until the county boundary changes of 1974 it lay within historic Flintshire rather than Denbighshire, and was known at various points in its history as Lleweni or Dymeirchion.
The village has a long association with the Welsh saint Beuno, marked by an ancient holy well on its outskirts. Steps leading down into the water suggest it was used both for healing and for baptisms, and the well's waters gained a particular reputation for treating eye complaints. The parish church, dedicated to Corpus Christi, has fabric dating back to the 14th century, with substantial rebuilding in 1864.
Tremeirchion's best-known landmark today is St Beuno's, a Jesuit theology college built in 1847, now run as a spirituality and retreat centre. In the 1870s the college's most famous student was the Victorian poet Gerard Manley Hopkins, who studied theology here while writing some of his most celebrated verse — a surprising literary footnote for such a small Denbighshire village.
Tremeirchion occupies a striking position on the steep western scarp of the Vale of Clwyd, with views stretching right across the valley towards the Clwydian Range. The village's parish church has a long history, and the surrounding limestone hills have been quarried for centuries, shaping both the local landscape and the traditional building stone seen throughout the area.
The village is also close to Cefn Caves and the site of important prehistoric archaeological finds, reflecting a long history of human activity in this part of the valley reaching back tens of thousands of years, making Tremeirchion of particular interest to visitors curious about the deeper history of the Vale of Clwyd.