Le Yaudet (in Brittany, France) is a promontory of granite commanding the estuary of the river Leguer down-river from the modern town of Lannion (Cotes d'Armor). It has long been known as the 'Old Town' (Civitas vetus in Latin documents and Coz Yaudet in Breton), with Iron Age, Roman and medieval finds having been made from time to time over the last two centuries. A programme of research excavations began in 1991 and continued annually until 2002. The results of the work show the site to have been in use almost continuously from the early prehistoric period. This is the second volume and deals with the Prehistoric period, continuing up until the end of the Gallic Empire. French text.

Le Yaudet is a promontory of granite commanding the estuary of the river Leguer down-river from the modern town of Lannion (Cotes d'Armor). It has long been known as the 'Old Town' (Civitas vetus in Latin documents and Coz Yaudet in Breton) and Iron Age, Roman and medieval finds have been made from time to time over the last two centuries. A programme of research excavations began in 1991 and continued annually until 2002. The results of the work show the site to have been in use almost continuously from the early prehistoric period. This publication is the first of four volumes documenting the fascinating discoveries made at this important site. Written entirely in French, it provides an overview of the site, giving insight into the physical geography, the town's history prior to excavation, and the archaeological research programme. It is lavishly illustrated with many photographs and line drawings.

The third volume of the Le Yaudet excavation reports deals with the later history of the site from the fourth century AD to the present day. The site was reoccupied at the end of the Roman period, serving as a military enclave. It may well have received migrants from Britain in the fifth and sixth centuries when the settlement developed as an ecclesiastical centre, surrounded by fields. Occupation continued into the early medieval period. There is some suggestion of destruction during the Viking raids but thereafter the village spread to cover much of the highest part of the enclosure. By the sixteenth century the village had shrunk to its present size. The volume contains a full discussion of all the finds.