The traditional site of MEDIOLANUM ('at the centre of the plain'), Clawdd Coch is a raised area some 300m east-west by 380m, tapering to the south, defined and eroded into, by the Vyrnwy river on the west and by old river channels elsewhere. Roman material appears to have been uncovered here in the past. In 1993 an oven, ostensibly of Roman type, was excavated in the eroding river bank. Extensive trenching in 1991-2 on a site identified from the air some 400m to the south-east (SJ2507619878) failed to produce any evidence for a Roman military installation. Two sherds of Roman pottery were recovered from the 1991-2 site, one dated to the earlier second century.

Sources: RCAHMW Inventory of Montgomeryshire (1911), 13 No. 63 fig 4
various notices in Britannia: 23 (1992), 256-8
24 (1993), 271-2
25 (1994), 246
26 (1995), 326
Silvester & Hankinson 'Roman Fort Environs', CPAT Report No. 767 (2006), 29-34

John Wiles, RCAHMW, 30 April 2007.