Hentland itself is very small and often missed off maps of the area. The parish, bounded on its eastern side by the River Wye, also includes the village of St Owen's Cross and the hamlets of Gillow, Kynaston, Little Pengethley, Llanfrother and Red Rail. The area is mostly farmland, with a small proportion being woodland. The soil consists of red loam, with a subsoil of rock and clay.
Hentland is best known as the site of a very early Welshmonastery, built by Saint Dubricius in the 6th century. It probably stood in the field just south of the present Church of England parish church, which is still a place of pilgrimage for Dubricius' modern devotees. The name is Old Welsh, Hên-llan, meaning "old church-enclosure". Gillow Manor is a 14th-century manor house with part of its old moat still surviving. In the Middle Ages it was one of the homes of the Pembridge family of Herefordshire.