description Shannon Overview
The Shannon is Ireland’s longest river, rising at Shannon Pot in County Cavan and flowing generally south through a chain of lakes before reaching the Atlantic through the Shannon Estuary. Its course includes or connects Lough Allen, Lough Ree, and Lough Derg, and the river system has long supported navigation, fishing, and settlement. The Ardnacrusha hydroelectric station near Limerick uses the Shannon’s flow, while the estuary provides access to Ireland’s west coast.
help Shannon FAQ
Where does Ireland's River Shannon begin?
The Shannon rises at Shannon Pot in County Cavan. It then flows generally south through a chain of lakes.
Which lakes are connected with the Shannon River?
The Shannon system includes or connects Lough Allen, Lough Ree, and Lough Derg. These lakes form important stages along Ireland's longest river.
Where does the Shannon reach the Atlantic Ocean?
The river reaches the Atlantic through the Shannon Estuary. Its lower course opens onto Ireland's west coast.
Why is the Shannon considered Ireland's longest river?
Its course begins at Shannon Pot in County Cavan and continues south through several major lakes before reaching the Atlantic. The river system includes Lough Allen, Lough Ree, and Lough Derg.
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