In 2010 Irish archaeologists managed to find the second of the two Viking settlements mentioned in the Annals of Ulster. The Linn Duchaill site is located beside the river Glyde, south of Dundalk Bay and about 75km from Dublin (which is the other site).
Excavations have now been confirmed dated to the mid-ninth century, which is consistent with the Annals of Ulster mention it to be founded c841. The location served first as a winter base and fortified harbor – known as a longphort (old Irish for “ship camp”). Subsequently, it served as permanent trading town and base to stage raids into Ireland from for at least the next 50 years. Ultimately the Vikings were driven out by local Irish warlords.
The site is an important find, because it is undisturbed (unlike many other locations), and it is from the early part of the Viking Age. A defensive rampart has been excavated and finds include ships rivets, hack-silver and items of local origin. According to archaeologists, the Lich Duchaill site may well end up being one of the most significant Viking Age discoveries in the world.