Major excavation at Roman forts The forts have been discovered at Dinefwr Park Three weeks of digging to excavate what could be the largest Roman garrison fort in Wales start on Monday. The site, which dates from the first century AD, was first found at Dinefwr Park, near Llandeilo, in 2003. Experts said the south Wales discovery could rewrite our understanding of the Roman conquest in the area. Recent surveys confirmed the site, which is invisible from the surface, is much larger than first thought and is made up of two overlapping forts. Emma Plunkett Dillon, archaeologist for the National...