River Thet
| Thet | |
|---|---|
River Thet at Brettenham | |
| Etymology | From Thetford, in turn from 'Theodford' which is Anglo-Saxon for 'Peoples Ford' |
| Location | |
| Country | England |
| Region | Norfolk |
| Physical characteristics | |
| Source | |
| • location | Deopham Green |
| • coordinates | 52°33′03″N 1°00′07″E / 52.5507°N 1.0019°E |
| • elevation | 53 m (174 ft) |
| Mouth | River Little Ouse |
• location | Thetford |
• coordinates | 52°24′41″N 0°44′55″E / 52.4113°N 0.7485°E |
• elevation | 10 m (33 ft) |
| Length | 34.3 km (21.3 mi) |
| Basin size | ≈225km2 |
| Basin features | |
| River system | River Little Ouse |
| Tributaries | |
| • left | Wittle
Stream from Middle Harling Fen Stream from Old Buckenham Fen |
| • right | Stream from Roudham village Stream from Hockham |
The River Thet is a river in Norfolk, England and is a tributary of the River Little Ouse. It rises in the Breckland with sources in Deopham Green and Rockland All Saints and joins the Little Ouse in Thetford after flowing approximately southwest.
The primary sources for its various small tributaries include the calcareous valley fen SSSIs Swangey Fen, Old Buckenham Fen, Middle Harling Fen and Kenninghall and Banham Fens with Quidenham Mere.Carr woodland is also a prevalent habitat throughout the floodplain where open wetlands have been invaded by scrub. The underlying geology is clay/loam over chalk for the easternmost parts of the river's course and sand/gravel over chalk for the majority of the river.