AbstractThe Life of Saint Theodore of Sykeon gives a detailed picture of village life in later Roman Galatia, on the eve of the Persian and Arab invasions. Though known to be located near the intersection of a Roman highway and a river, the site of Sykeon remained unidentified in modern times. Earlier inability to locate it was attributable to mistakes made by 19th century historical geographers of Anatolia, but even after their errors were corrected by David French, the site could not be found. In September 1995 the writer and Peter Brown of Princeton University discovered a terraced slope, strewn with late Roman pottery, at Kiliseler near the village of Tahirler, south of Beypazarı. The site, and its geology, conform to the known characteristics of Sykeon, including its distance from neighbouring towns, and provide suitable settings for many of the events in the career of Saint Theodore, thus raising the hope that archaeology may now be able to supplement information available from the saint's Life.