Afon Hydfer

{{Short description|River in Powys, Wales}} {{Use dmy dates|date=March 2020}} {{one source|date=January 2024}} {{Infobox river | name = Afon Hydfer | name_other = | name_etymology = | nickname =  | image = Pontdroed Afon Hydfer - Afon Hydfer footbridge - geograph.org.uk - 3329081.jpg | image_caption = Footbridge over Afon Hydfer in Llywel | image_alt =  | map = | map_caption = | map_alt = | pushpin_map = Wales | pushpin_map_caption= | pushpin_map_alt =  | subdivision_type1 = Country | subdivision_name1 = Wales | subdivision_type2 = County | subdivision_name2 = Powys | subdivision_type3 = | subdivision_name3 = | subdivision_type4 = | subdivision_name4 = | subdivision_type5 = | subdivision_name5 =  | length = | width_min = | width_avg = | width_max = | depth_min = | depth_avg = | depth_max = | discharge1_location= | discharge1_min = | discharge1_avg = | discharge1_max =  | source1 = Black Mountain | source1_location = | source1_coordinates= | source1_elevation = | mouth = | mouth_location = River Usk | mouth_coordinates = {{coord|51|56|00|N|3|39|24|W|type:river_region:GB|display=inline}} | mouth_elevation = | progression = | river_system = | basin_size = | basin_landmarks = | basin_population = | tributaries_left = | tributaries_right = | waterbodies = | waterfalls = | bridges = | ports = | custom_label = | custom_data = | extra = }} The '''Afon Hydfer''' is a short river in Powys in the west of the Brecon Beacons National Park, south Wales. Its headwaters rise on the northeastern slopes of the Black Mountain as the streams named Trinant, Nant y Cadno, Nant yr Erydr and Crognant, joining to flow down Cwm yr Afon on the western edge of Glasfynydd Forest. The river turns east at Blaenau Uchaf, then northeast through Cwm Hydfer and joins the River Usk just below Pont ar Hydfer. Other tributaries of the Hydfer include the streams of Nant Cil-y-clawdd, Nant Crinog and Nant Meity.<ref>Ordnance Survey Explorer map OL12 'Brecon Beacons National Park: western area'</ref>

==References== {{Reflist}}

{{DEFAULTSORT:Hydfer}} Category:Rivers of the Brecon Beacons National Park Category:Rivers of Powys