and their excavated mosaic floors suggest a mosaic school of art had a workshop in the town, members of which seem to have travelled in the area to execute mosaic floors in villas away from Durnovaria itself. A large late-Roman and Christian cemetery has been excavated at Poundbury just to the west of the town, but little is known of Durnovaria's decline after the departure of the Roman administration. The name, however, survived to become the Anglo-Saxon Dornwaraceaster and modern 'Dorchester'. The residents of modern day Dorchester are known as Durnovarians. Extant remains The town still has some Roman features, including part of the town walls and the foundations of a Roman town house, which are freely accessible near County Hall. There are many Roman finds in the County Museum. The Romans built an aqueduct to supply the town with water, traces remain at nearby Whitfield Farm and approaching Poundbury tunnel on the Dorchester - Yeovil railway. Near the town centre is Maumbury Rings, an ancient British earthwork converted by the Romans for use as an amphitheatre, and to the north west is Poundbury Hill, another pre-Roman fortification. There is little evidence to show whether or not Durnovaria survived into the post-Roman era: Gildas' record of a tradition, given in De Excidio et Conquestu Britanniae iii, of twenty-eight cities and sundry castles of former happy times was not provided with any names. Surviving northern boundaries of the administrative region, or civitas that included Dorset, reached as far as Selwood, and mark the county division between Somerset and Wiltshire to this day. In the sub-Roman period, as urban centres were progressively abandoned, the centres of administration and justice, such as they were, generally removed to fortified strongholds. The city's site is attested as Dornwaraceaster in the ninth century, elided to produce 'Dornaceaster, first recorded in 937. Notes Further reading Breeze, A., "Durnovaria, the Roman name of Dorchester", Notes & Queries for Somerset & Dorset 35.4 pp 69–72. Trevarthen, M. (2008), Suburban life in Roman Durnovaria: Excavations at the former County Hospital Site, Dorchester, Dorset 2000–2001, Trust for Wessex Archaeology, Durham, E. and Fulford, M. (2014) A Late Roman Town House and its Environs: The Excavations of C.D. Drew and K.C. Collingwood Selby in Colliton Park, Dorchester, Dorset 1937-8. London: Society for the Promotion of Roman Studies. External links Roman towns and cities in England Roman Dorchester Archaeological sites in Dorset