The River Swilly (Irish: An tSúileach) is a river in Ireland, which flows in an eastern direction through Letterkenny, County Donegal. Letterkenny, the largest town in County Donegal, is built on the river and became the first crossing point on the river in the 17th century.
History
The river takes its name Súileach from a man-eating water monster that was chopped in half by Saint Columba, who was born in Gartan.Letterkenny DJ and Producer Diarmuid O'Doherty produced a song, "A Monster in the River Swilly", about this legend
Source
Creative Commons Attribution-ShareAlike License