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River Afan
, name_etymology = , image = The_Afon_Afan,_Cymmer_-_geograph.org.uk_-_1001060.jpg , image_size = , image_caption = The Afan near Cymmer , 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 = Towns , subdivision_name5 = Blaengwynfi, Cymmer, Cwmafan, Port Talbot, , length = , width_min = , width_avg = , width_max = , depth_min = , depth_avg = , depth_max = , discharge1_location= , discharge1_min = , discharge1_avg = , discharge1_max = , source1 = , source1_location = Mynydd Llangeinwyr , sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afon Afan
, name_etymology = , image = The_Afon_Afan,_Cymmer_-_geograph.org.uk_-_1001060.jpg , image_size = , image_caption = The Afan near Cymmer , 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 = Towns , subdivision_name5 = Blaengwynfi, Cymmer, Cwmafan, Port Talbot, , length = , width_min = , width_avg = , width_max = , depth_min = , depth_avg = , depth_max = , discharge1_location= , discharge1_min = , discharge1_avg = , discharge1_max = , source1 = , source1_location = Mynydd Llangeinwyr , sou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Llynfi
The River Llynfi, cy, Afon Llynfi, is one of three main tributaries of the River Ogmore ( cy, Afon Ogwr). It runs for around 10 miles from its source north of Maesteg and flows generally southwards through the Llynfi Valley to the confluence with the River Ogmore and the River Garw at Aberkenfig. Its main tributaries are Nant Cwm-du and Nant Cedfyw which enter on its left bank and Nant Crynwydd, Nant Sychbant and Nant y Gadlys on its right bank.Ordnance Survey Explorer maps 151 'Cardiff & Bridgend/Caerdydd & Phen-y-bont-ar-Ogwr' and 166 'Rhondda & Merthyr Tydfil/Merthyr Tudful' The Llynfi has endured a long period of industrialisation and coal mining especially around Maesteg. There was an ironworks and brick works at Tondu. Industrialisation and poor provision of sewerage led to severe water pollution of the river. In the second half of the 20th century, whilst the impact of coal mining diminished, new industries such as cosmetics and toiletries, paper Paper is a thin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acid Mine Drainage
Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines. Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks containing an abundance of sulfide minerals. Areas where the earth has been disturbed (e.g. construction sites, subdivisions, and transportation corridors) may create acid rock drainage. In many localities, the liquid that drains from coal stocks, coal handling facilities, coal washeries, and coal waste tips can be highly acidic, and in such cases it is treated as acid rock drainage. This liquid often contains highly toxic metals, such as copper or iron. These, combined with reduced pH, have a detrimental impact on the streams aquatic environments. The same type of chemical reactions and pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afon Corrwg Fechan
This is a list of rivers of Wales, organised geographically. It is taken anti-clockwise from the Dee Estuary to the M48 Bridge that separates the estuary of the River Wye from the River Severn. Tributaries are listed down the page in an upstream direction, starting with those closest to the sea. The main stem (or principal) river of a catchment is given, left-bank tributaries are indicated by (L), and right-bank tributaries by (R). Note that, in general usage, the 'left (or right) bank of a river' refers to the left (or right) hand bank as seen when looking downstream. Where a named river is formed by the confluence of two differently named rivers, these are labelled as (Ls) and (Rs) for the left and right forks. A prime example is the formation of the River Taff from the Taf Fawr and the Taf Fechan at Cefn Coed-y-cymmer. The list includes more or less every watercourse named on Ordnance Survey mapping and thus many of the main rivers of Wales (as defined by Natural Resources Wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glyn-neath
Glynneath ( cy, Glyn-nedd "valley of the River Neath"), also spelt ''Glyn-neath'' and ''Glyn Neath'', is a small town, community and electoral ward lying on the River Neath in the county borough of Neath Port Talbot, Wales. It was formerly in the historic county of Glamorgan. Glynneath ward covers only part of the community, with some 840 electors included in the neighbouring ward of Blaengwrach. Industrialisation reached Glynneath when coal mining started in 1793, and rapidly expanded when the Neath Canal came to the village in 1775. Many features of the old canal still survive to the present time. There are waterfalls to the north east at Pontneddfechan near the Brecon Beacons and large parts of the rural area are heavily forested. Notable buildings Glynneath is home to the ruins of Aberpergwm House. Once owned by Rhys ap Siancyn, Aberpergwm House became the home of the Williams family, Welsh gentry with a strong tradition of using the Welsh language over English. Their d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glyncorrwg
Glyncorrwg is a village in the Afan Valley, in southern Wales. Glyncorrwg is also the name of an electoral ward and formerly a community covering the village and surrounding countryside, in Neath Port Talbot county borough. Glyncorrwg community contains the villages of Abergwynfi, Blaengwynfi, Croeserw, Cymmer, Abercregan, Duffryn and Glyncorwg itself. The population of Glyncorrwg as a community, was recorded as 5,544 in the 2001 census, reducing to 5,283 at the 2011 census. The population of the electoral ward mentioned above was 1,096 only at the 2011 census. History Glyncorrwg was once an important coal mining centre, typical of the South Wales Valleys. With the end of the coal mining industry during the 1970s, buildings were cleared away, factories closed and people left the area. In 1990 the local community decided to take advantage of the local scenery and complemented it with a series of ponds along the narrow valley. Trout fishing, coarse fishing, and canoeing are n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Ladder
A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration as well as movements of potamodromous species. Most fishways enable fish to pass around the barriers by swimming and leaping up a series of relatively low steps (hence the term ''ladder'') into the waters on the other side. The velocity of water falling over the steps has to be great enough to attract the fish to the ladder, but it cannot be so great that it washes fish back downstream or exhausts them to the point of inability to continue their journey upriver. History Written reports of rough fishways date to 17th-century France, where bundles of branches were used to make steps in steep channels to bypass obstructions. A pool and weir salmon ladder was built around 1830 by James Smith, a Scottish engineer on the River Teith, near Deanston, Perthshire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weir
A weir or low head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the river level. Weirs are also used to control the flow of water for outlets of lakes, ponds, and reservoirs. There are many weir designs, but commonly water flows freely over the top of the weir crest before cascading down to a lower level. Etymology There is no single definition as to what constitutes a weir and one English dictionary simply defines a weir as a small dam, likely originating from Middle English ''were'', Old English ''wer'', derivative of root of ''werian,'' meaning "to defend, dam". Function Commonly, weirs are used to prevent flooding, measure water discharge, and help render rivers more navigable by boat. In some locations, the terms dam and weir are synonymous, but normally there is a clear distinction made between the structures. Usually, a dam is designed specifically to impound water behind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Trout
Sea trout is the common name usually applied to anadromous (sea-run) forms of brown trout (''Salmo trutta''), and is often referred to as ''Salmo trutta'' morpha ''trutta''. Other names for anadromous brown trout are sewin (Wales), peel or peal ( Southwest England), mort (Northwest England), finnock (Scotland), white trout (Ireland) and salmon trout (culinary). The term "sea trout" is also used to describe other anadromous salmonids, such as coho salmon (''Oncorhynchus kisutch''), coastal cutthroat trout (''Oncorhynchus clarkii clarkii''), brook trout (''Salvelinus fontinalis''), Arctic char (''Salvelinus alpinus alpinus'') and Dolly Varden (''Salvenlinus malma''). Even some non-salmonid fish species are also commonly known as sea trout, such as Northern pikeminnow (''Ptychocheilus oregonensis'') and members of the weakfish family (''Cynoscion''). Range Anadromous brown trout are widely distributed in Europe along the Atlantic and Baltic coasts, the United Kingdom and the coa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmon
Salmon () is the common name for several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the family (biology), family Salmonidae, which are native to tributary, tributaries of the North Atlantic (genus ''Salmo'') and North Pacific (genus ''Oncorhynchus'') basin. Other closely related fish in the same family include trout, Salvelinus, char, Thymallus, grayling, Freshwater whitefish, whitefish, lenok and Hucho, taimen. Salmon are typically fish migration, anadromous: they hatch in the gravel stream bed, beds of shallow fresh water streams, migrate to the ocean as adults and live like sea fish, then return to fresh water to reproduce. However, populations of several species are restricted to fresh water throughout their lives. Folklore has it that the fish return to the exact spot where they hatched to spawn (biology), spawn, and tracking studies have shown this to be mostly true. A portion of a returning salmon run ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Briton Ferry, Wind Turbines Over The Afan Valley
British people or Britons, also known colloquially as Brits, are the citizens of the United Kingdom of Great Britain and Northern Ireland, the British Overseas Territories, and the Crown dependencies.: British nationality law governs modern British citizenship and nationality, which can be acquired, for instance, by descent from British nationals. When used in a historical context, "British" or "Britons" can refer to the Ancient Britons, the indigenous inhabitants of Great Britain and Brittany, whose surviving members are the modern Welsh people, Cornish people, and Bretons. It also refers to citizens of the former British Empire, who settled in the country prior to 1973, and hold neither UK citizenship nor nationality. Though early assertions of being British date from the Late Middle Ages, the Union of the Crowns in 1603 and the creation of the Kingdom of Great Britain in 1707 triggered a sense of British national identity.. The notion of Britishness and a shared Britis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Taff
The River Taff ( cy, Afon Taf) is a river in Wales. It rises as two rivers in the Brecon Beacons; the Taf Fechan (''little Taff'') and the Taf Fawr (''great Taff'') before becoming one just north of Merthyr Tydfil. Its confluence with the River Severn estuary is in Cardiff. The river supports several species of migratory fish, including salmon, sewin (sea trout), and eel. Course From its confluence at Cefn-coed-y-cymmer, the river flows south, passing several towns. It picks up a few tributaries, such as the River Cynon, River Rhondda, Bargoed Taf and Nant Clydach. It flows through Pontypridd and through to Taff's Well, the site of Wales' only thermal spring. It flows underneath the M4 Motorway, before turning southeastward and flowing past the Cardiff suburbs of Radyr, Whitchurch, Llandaff, Pontcanna, the city centre and Grangetown, before emptying into Cardiff Bay, near to the mouth of the River Ely. Taf Fawr The Taf Fawr rises below the peak of Corn Du, south- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
