オイアッソ
Sign in to savethumb|Current view of the mouth of the Bidasoa. thumb|Easo and Easo prom. in the lower left corner of this 1578 map of Gaul according to Ptolemy. thumb|Oeaso near the left extreme of Gallia in this old map or Roman Hispania. Oiasso, Oiasona or Oiarso was a Vascon Roman (Civitas) town located on the left bank of the Bidasoa estuary in the Bay of Biscay (current Spain). Archaeological evidence unearthed recently pinpoints the core area of Oiasso in the old quarter of Irun, Gipuzkoa, by the Spanish-French border, where harbour and bath remains have been discovered. However, two other focuses in C