The Roman Map of Britain Ivernio Iwerne Minster, Dorset

Ibernio (R&C 37) for Ivernio next

The river Iwerne is Iwern broc 958; Iwerne village Ywern, Hywerna ca. 871. Based on W. yw 'yew' and found also in Ptolemy's Iernos, the Kenmore of Ireland, according to Ekwall.

Iwerne Villa (ST8523) 
Park House Farm Roman Villa (ST8513) EHNMR-651372
ROMAN VILLA 300YDS (270M) W OF PARK HOUSE FARM BUILDINGS Old Scheduled Monument Number DO484 (385663, 113727)

Hod Hill Roman fort (ST8510)
HOD HILL CAMP AND LYDSBURY RINGS Old Scheduled Monument Number DO016 (385661, 110663)

Iwerene Minster Roman settlement (ST8613)
Stourpaine Roman settlement (ST8709) NMRMIC-2945
Everly Water Meadow Roman Settlement (ST8611) EHNMR-651374

See also http://www.england-in-particular.info/iwerne2.html , but I would caution that the research gathers some unwarranted assumptions - the age of the Cosmography's map and the expectation that the map would only bear contemporarily occupied sites.