The Afon Twymyn (English: River Twymyn) is a river in Powys, Mid Wales.
| Afon Twymyn | |
|---|---|
 Afon Twymyn at Cringoed, looking downstream | |
| Location | |
| Country | Wales |
| Region | Powys |
| Physical characteristics | |
| Source | Dylife |
| Mouth | |
• location | River Dyfi, Cemmaes Road |
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.
See also edit
52°38′N 3°44′W / 52.633°N 3.733°W
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