Archäologische Forschungen in Teurnia - Gugl, Christian (Österreichisches Archäologisches Institut, 2000)
The Claudian-era Municipium Teurnia, today's St. Peter in Holz, is situated four kilometers west of Spittal an der Drau (Carinthia, Austria). Along with Virunum, Celeia, luvavum and Aguntum, Teurnia counts as one of the oldest Roman cities in the province of Noricum. Due to its strategic location on the Drava River and at the intersection of two principal routes, namely the Drava Valley and the Tauern roads, Teurnia developed from a LaTène-period settlement to a Roman city, whose territory included large parts of Upper Carinthia and the Lungau in modern Salzburg.The assessment of La Tène period settlement activity in Teurnia is based solely on the finds assigned to the La Tène culture of Mokronog group centered in the south-east Alps. Continuous settlement in Teurnia can be proven from the late La Tène until the early Imperial period. A comparable trend can be seen at Celeia-Celje, where the initial Celtic hill settlement eventually developed into a Roman vicus in the valley.