The River Tat is a short river in the County of

Norfolk Norfolk ( ) is a Ceremonial counties of England, ceremonial county in England, located in East Anglia and officially part of the East of England region. It borders Lincolnshire and The Wash to the north-west, the North Sea to the north and eas ...

England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...

. It is an important headwater for the

River Wensum The River Wensum is a chalk river in Norfolk, England, Norfolk, England and a tributary of the River Yare, despite being the larger of the two rivers. The river is a biological Site of Special Scientific Interest and Special Area of Conservatio ...

of which it is a

tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they ...

. Its source is on

Syderstone Syderstone is a civil parish in the English county of Norfolk, near the town of Fakenham. It has an area of . The population of 532 in 224 households at the 2001 census fell to 445 at the 2011 Census. Governance For the purposes of local gover ...

Common, just north of the village of

Tattersett Tattersett is a village and civil parish in the English county of Norfolk. It covers an area of , and had a population of 902 in 390 households at the United Kingdom Census 2001, 2001 census, the population increasing to 962 at the 2011 Census. ...

. The marshes and pools of Syderstone Common that provide the headwaters for the river are a

site of special scientific interest A Site of Special Scientific Interest (SSSI) in Great Britain, or an Area of Special Scientific Interest (ASSI) in the Isle of Man and Northern Ireland, is a conservation designation denoting a protected area in the United Kingdom and Isle ...

(SSSI) and are the home of a viable colony of the rare

Natterjack Toad The natterjack toad (''Epidalea calamita'') is a toad native to sandy and heath (habitat), heathland areas of Europe and the United Kingdom. Adults are in length, and are distinguished from common toads by a yellow line down the middle of the b ...

.English Nature.
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References

Tat {{England-river-stub