River Cladagh (Swanlinbar)
| Cladagh River Swanlinbar River | |
|---|---|
| Native name | An Chlaideach (Irish) |
| Location | |
| Country | Republic of Ireland, United Kingdom |
| Province | Ulster |
| Region | Northern Ireland |
| Counties | County Cavan, County Fermanagh |
| Village | Swanlinbar |
| Physical characteristics | |
| Source | |
| • location | Cuilcagh Mountain, County Cavan |
| Source confluence | |
| • location | H143 259 Irish Grid |
| • coordinates | 54°10′54.90″N 7°46′54.23″W / 54.1819167°N 7.7817306°W |
| • elevation | 265 m (869 ft) |
| Mouth | |
• location | Upper Lough Erne, County Fermanagh |
The Cladagh River (Irish: An Chlaideach or "washing river"), Claddagh or Swanlinbar River, is a moderately large river which forms from a number of small streams rising in Commas townland on the south-eastern slopes of Cuilcagh Mountain, County Cavan, and flows through the village of Swanlinbar, before crossing the border into County Fermanagh and eventually flowing into Upper Lough Erne. It is ultra-oligotrophic upstream before gradually becoming oligotrophic and oligo-mesotrophic through its middle and lower reaches.