River Twymyn
| Afon Twymyn | |
| River | |
 Afon Twymyn at Cringoed, looking downstream
|
|
| Country | Wales |
|---|---|
| Region | Powys |
| Source | Dylife |
| Mouth | |
| - location | River Dyfi, Cemmaes Road |
The Afon Twymyn (English: River Twymyn) is a river in Powys, Mid Wales.
From its source at the 40-metre high Ffrwd Fawr waterfall and head of the Pennant Valley near Dylife the river flows through Llanbrynmair before joining the River Dyfi upstream of Cemmaes Road.
Coordinates: 52°38′N 3°44′W / 52.633°N 3.733°W
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Wikipedia