FOREST, a hamlet, in that part of the parish of LLANYCRWYS which is in the upper division of the hundred of CATHINOG, county of CARMARTHEN, SOUTH WALES, 4 miles (E.) from Lampeter, containing 226 inhabitants. There are traces still discernible, in two places near the small river Twrch, of the Roman road called Sam Helen, which passed through this hamlet, at a short distance from the church, in a direction from Loventium, now Llanio in Cardiganshire, to the station at Llanvair ar y brkn, near Llandovery.