River Arth
The River Arth is a small river that rises in the hills near Bethania, Ceredigion, Wales, and runs west for 15 miles (24 km) and discharges into Cardigan Bay at Aberarth.
| River Arth | |
|---|---|
 Arth in Aberarth | |
| Location | |
| Country | Wales |
| Physical characteristics | |
| Source | |
| • location | hills near Bethania, Ceredigion |
| Mouth | Cardigan Bay |
• location | Aberarth |
| Length | 15 mi (24 km) |
Despite its small size it is one of the few rivers in Britain which has a bore when the incoming tide cause a tidal wave to run upstream. The bore is only a few inches high and it runs only for a short distance upstream; beyond the road bridge in Aberarth the terrain rises steeply, preventing the bore propagating any further.
In the 1970s, the River Arth suffered severe intermittent agricultural pollution from a dairy unit not far from the village but improved pollution control and a change of ownership of the farm rectified that position.
External links
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