Aldwincle Marsh
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| Site of Special Scientific Interest | |
 | |
| Location | Northamptonshire |
|---|---|
| Grid reference | TL 004 807[1] |
| Interest | Biological |
| Area | 2.0 hectares[1] |
| Notification | 1984[1] |
| Location map | Magic Map |
Aldwincle Marsh is a 2-hectare (4.9-acre) biological Site of Special Scientific Interest north of Thrapston in Northamptonshire.[1][2]
This marsh and fen on shallow peat is formed by seepage from the boundary between clay and limestone. Plants in wet areas include blunt-flowered rush, marsh pennywort, wild angelica and Menyanthes trifoliata, a rare species of bogbean. Drier areas have grasses and herbs which attract butterflies and dragonflies. The site includes a stretch of Harpers Brook.[3]
The site is private land with no public access, but the Nene Way runs along its eastern boundary.
