Corpus of Electronic Texts Edition
The Second Battle of Moytura (Author: [unknown])

section 126

Then Goibniu went into the well, and he became whole. There was a warrior with the Fomorians, even Octriallach son of Indech son of Dé Domnann, son of the Fomorian king. He told the Fomorians that each man of them should bring a stone of the stones of Drowes to cast into the well of Slaine in Achad Abla to the west of Moytura, to the east of Loch Arboch. So they went, and a stone for each man was brought on the well. Wherefore the cairn thus made is called Octriallach's Cairn. But another name for that well is Loch Luibe, for Dian-cecht used to put into it one of every herb lub that grew in Erin.