The River Ainse is a small river in the county of Norfolk

Norfolk

Norfolk is a low-lying county in the East of England. It has borders with Lincolnshire to the west, Cambridgeshire to the west and southwest and Suffolk to the south. Its northern and eastern boundaries are the North Sea coast and to the north-west the county is bordered by The Wash. The county...

. It is a tributary of the River Wensum

River Wensum

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

 which it merges with at Lenwade

Lenwade

Lenwade is a hamlet in the civil parish of Great Witchingham, Norfolk. Located in the Wensum Valley and adjacent to the A1067 road and being south-east of Fakenham and some north-west of Norwich.- Etymology:...

 . The River Ainse has several tributaries also.

Eade's watermill

The watermill located on the river at Great Witchingham

Great Witchingham

Great Witchingham is a village and civil parish in the English county of Norfolk about north-west of Norwich.It covers an area of and had a population of 564 in 235 households as of the 2001 census....

 is known as Eade’s Mill . The mill was built in 1666. Until 1948 the waterwheel was still in working order. By 1972 the watermill was still being used as a hammer mill to grind up pig meal and was powered by electricity. Today, the watermill and its surrounding buildings are listed.