| 词条 | River Arth |
| 释义 |
| name = River Arth | name_native = | name_native_lang = | name_other = | name_etymology = | image = File:Aberarth and River Arth.jpg | image_size = | image_caption = Arth in Aberarth | map = | map_size = | map_caption = | pushpin_map = | pushpin_map_size = | pushpin_map_caption= | subdivision_type1 = Country | subdivision_name1 = Wales | subdivision_type2 = | subdivision_name2 = | subdivision_type3 = Counties | subdivision_name3 = | subdivision_type4 = | subdivision_name4 = | subdivision_type5 = | subdivision_name5 = | length = {{convert|15|mi|km|abbr=on}} | width_min = | width_avg = | width_max = | depth_min = | depth_avg = | depth_max = | discharge1_location= | discharge1_min = | discharge1_avg = | discharge1_max = | source1 = | source1_location = hills near Bethania, Ceredigion | source1_coordinates= | source1_elevation = | mouth = Cardigan Bay | mouth_location = Aberarth | mouth_coordinates = | mouth_elevation = | progression = | river_system = | basin_size = | tributaries_left = | tributaries_right = | custom_label = | custom_data = | extra = }} The River Arth is a small river that rises in the hills near Bethania, Ceredigion, Wales, and runs west for {{convert|15|mi|km}} and discharges into Cardigan Bay at Aberarth. 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
1 : Rivers of Ceredigion |
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