no it is not
River Severn 220 miles River Thames 215 miles
The longest river in Britain is the Severn closely followed by the Thames.
The River Severn, River Trent and River Thames.
River Severn River Thames River Trent
The river Severn. It beats the Thames by about 3 miles.
The River Severn is the mainlands longest river.
The river Severn is slightly longer than the Thames.
thames
No. The Severn is the longest and the Thames is the second longest.
The River Severn - but a small part of it is in Wales. The River Thames is the longest wholly within England.
I suppose it's the Thames, becase it flows through the Capital, London. But the Severn is the longest in England & Wales & the Tay is in Scotland. The longest in the British Isles is the Shannon, wholly in the Republic of ireland.
No the Severn is the longest, the Thames is the second longest.