| River Blackwater | |
|---|---|
&sq=&lang=&file=File:Bridge_over_the_River_Blackwater_at_Charlemont_-_geograph.org.uk_-_531618.jpg) Charlemont Bridge over the River Blackwater, which connects Charlemont, County Armagh, to The Moy, County Tyrone. | |
 | |
| Native name | |
| Location | |
| Country | Northern Ireland, (UK) |
| Physical characteristics | |
| Source | |
| • location | north of Augher, County Tyrone |
| • elevation | 59 metres (194 ft) |
| Mouth | |
• location | Lough Neagh |
| Length | 91.3 km (56.7 mi) |
| Basin size | 1,507 km2 (582 sq mi) |
| Discharge | |
| • average | 19.7 m3/s (700 cu ft/s) |
| Basin features | |
| Tributaries | |
| • right | Cor River, Callan River, River Tall |
The River Blackwater (Irish: An Abhainn Mhór)[1] or Ulster Blackwater is a river mainly in County Armagh and County Tyrone, Northern Ireland. Its source is to the north of Fivemiletown, County Tyrone. The river divides County Armagh from County Tyrone and also divides County Tyrone from County Monaghan, making it part of the border between the United Kingdom and the Republic of Ireland.
- ^ "An Abhainn Mhór/River Blackwater". logainm.ie. Retrieved 9 December 2023.