Ducan's Marsh is a Site of Special Scientific Interest lying between around 9 miles (14 km) south-east of Norwich lying between Claxton and Carleton St Peter in Norfolk, on the banks of Carleton Beck, a small tributary of the River Yare. It is one of the richest areas of unimproved wet grassland in East Norfolk and has never been sprayed with agrochemicals or ploughed.
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Ducan's Marsh Wikipedia(Text) CC BY-SA