Corpus of Electronic Texts Edition
Cath Maige Tuired: The Second Battle of Mag Tuired (Author: [unknown])

section 126

Then Goibniu went into the well and he became whole. The Fomoire had a warrior named Ochtríallach, the son of the Fomorian king Indech mac Dé Domnann. He suggested that every single man they had should bring a stone from the stones of the river Drowes to cast into the well Sláine in Achad Abla to the west of Mag Tuired, to the east of Lough Arrow. They went, and every man put a stone into the well. For that reason the cairn is called Ochtríallach's Cairn. But another name for that well is Loch Luibe, because Dían Cécht put into it every herb that grew in Ireland.