The River Derg is a small river in

Ireland Ireland (, ; ; Ulster Scots dialect, Ulster-Scots: ) is an island in the North Atlantic Ocean, in Northwestern Europe. Geopolitically, the island is divided between the Republic of Ireland (officially Names of the Irish state, named Irelan ...

. The river has its source in Lough Derg, in

County Donegal County Donegal ( ; ) is a Counties of Ireland, county of the Republic of Ireland. It is in the Provinces of Ireland, province of Ulster and is the northernmost county of Ireland. The county mostly borders Northern Ireland, sharing only a small b ...

Republic of Ireland Ireland ( ), also known as the Republic of Ireland (), is a country in Northwestern Europe, north-western Europe consisting of 26 of the 32 Counties of Ireland, counties of the island of Ireland, with a population of about 5.4 million. ...

, and it flows into

County Tyrone County Tyrone (; ) is one of the six counties of Northern Ireland, one of the nine counties of Ulster and one of the thirty-two traditional counties of Ireland. Its county town is Omagh. Adjoined to the south-west shore of Lough Neagh, the cou ...

Northern Ireland Northern Ireland ( ; ) is a Countries of the United Kingdom, part of the United Kingdom in the north-east of the island of Ireland. It has been #Descriptions, variously described as a country, province or region. Northern Ireland shares Repub ...

, east through

Castlederg Castlederg (earlier Caslanadergy, ) is a town in County Tyrone, Northern Ireland. It lies on the River Derg and is near the border with County Donegal, Ireland. It stands in the townlands of Castlesessagh and Churchtown, in the historic baro ...

to join with the

River Strule The River Strule ( Irish: ''An tSruthail'') is a small river in County Tyrone, Northern Ireland. The river has its source in the confluence of the rivers Camowen and Drumragh at Omagh Omagh (; from , meaning 'the virgin plain') is the c ...

to form the

River Mourne The River Mourne () is a river in County Tyrone (between Strabane and Newtownstewart), Northern Ireland, and is a tributary of the River Foyle It is formed at the meetings of the River Derg and River Strule below Ardstraw. At Strabane it joins ...

. The upper reaches of the catchment are characterised by

peatland A peatland is a type of wetland whose soils consist of Soil organic matter, organic matter from decaying plants, forming layers of peat. Peatlands arise because of incomplete decomposition of organic matter, usually litter from vegetation, du ...

, while the lower reaches flow predominantly through farmland. The River Derg's length is .Ordnance Survey of Ireland: Rivers and their Catchment Basins 1958 (Table of Reference) The River Derg is known for its

salmon Salmon (; : salmon) are any of several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the genera ''Salmo'' and ''Oncorhynchus'' of the family (biology), family Salmonidae, native ...

grilse Salmon (; : salmon) are any of several commercially important species of euryhaline ray-finned fish from the genera ''Salmo'' and ''Oncorhynchus'' of the family Salmonidae, native to tributaries of the North Atlantic (''Salmo'') and North Pa ...

and

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 bull trout, sewin (Wales ...

References

Derg The Derg or Dergue (, ), officially the Provisional Military Administrative Council (PMAC), was the military junta that ruled Ethiopia, including present-day Eritrea, from 1974 to 1987, when they formally "Civil government, civilianized" the ...

{{Ireland-river-stub

See also

References