No. The river Shannon is not in England. It is in Ireland, where it is the longest river and a very important one.
The river Shannon is the main river in Ireland. There are also some other rivers of significance, due to the more important towns and cities that are built on them, like the river Liffey on which Dublin is built or the Lee on which Cork is built. The Shannon would still be the most important river.
The River Thames is the best known river in England but it isn't necessarily more important than the Severn, Mersey, Trent, Humber, Avon or Tyne.
The Severn is the longest river and the Thames is probably the most important, being that it flows through London. Historically, economically and in terms of navigability, the most important river is the Severn, followed by the Trent, then the Ouse. The Thames is the 4th most important river.
The River Bann (An Bhanna in Gaelic) is the longest river in Northern Ireland, flowing for a total of 129 kilometres (80 miles), from the Mountains of Mourne to the Atlantic Ocean in the north.
There are many rivers in Leitrim, with the river Shannon being the most significant one.
Longest River wholly in England, River Thames 215 miles / 346 km longthe river sevan!But realy Ur the biggest river in England
The main river in Ireland is the River Shannon, 386 km (240 mi), the longest river in both Ireland and the British Isles, which separates the boggy midlands of Ireland from the West of Ireland. The river develops into three lakes along its course, Lough Allen, Lough Ree and Lough Derg. Of these, Lough Derg is the biggest. The River Shannon enters the Atlantic Ocean after Limerak City at the Shannon Estuary. Other major rivers include the River Liffey, River Lee, River Swilly, River Blackwater, River Nore, River Suir, River Barrow and River Boyne.
Israel's Most Important River Is The Jordan River
The Danube is Europe's most important river.
The Tiber is the most important river in Rome.
It is the River Thames for London, England
The three most important rivers are the Indus River, the Ganges River and the Brahmaputra River.