Key Facts About Ireland’s River Shannon
- Length: 360 km (224 mi) – longest in British Isles.
- Source: Cuilcagh Mountains (Cavan/Fermanagh border).
- Mouth: Atlantic at Limerick.
- Basin: ~15,000 km² – largest in British Isles.
- Major Tributaries: Suck, Brosna, Fergus.
- Lakes: Lough Allen, Lough Ree, Lough Derg.
- Navigation: Navigable for much of its course.
- Hydroelectric: Power generation at several sites.
- Fishing: Renowned salmon angling.
- Wildlife: Salmon, trout, otters, mink, waterfowl.
- Flora: Water lilies, reeds, rushes.
- Challenges: Agricultural/industrial pollution; remediation underway.
- History: Transport, trade, defense; site of 1014 Battle of Clontarf.
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