| Kells Blackwater Leinster Blackwater | |
|---|---|
 | |
 | |
| Native name | An Abhainn Dubh (Irish) |
| Location | |
| Country | Ireland |
| Physical characteristics | |
| Source | |
| • location | South County Cavan |
| Mouth | River Boyne |
• location | Navan, County Meath |
| Length | 68 km (42 mi) [1] |
| Basin size | 733 km2 (283 sq mi) |
| Discharge | |
| • average | 15.08 m3/s (533 cu ft/s)[ citation needed ] |
| Basin features | |
| River system | Boyne |
The Kells Blackwater (Irish : An Abhainn Dubh), [2] also called the River Blackwater [3] or Leinster Blackwater, [1] is a river that flows through the counties of Cavan and Meath in Ireland. It is a tributary of the River Boyne which flows into the Irish Sea at Drogheda. (This is one of two River Blackwaters which flow into the Boyne in County Meath, the other originates in County Kildare).
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It has its source in the south of County Cavan, near the town of Bailieborough.
In its passage through Lough Ramor at Virginia, County Cavan, it receives its strongest tributary, Nadreegeel Lough Stream (Openstreetmap: Nadrageel), which rises about 4 km south east of Lavey, between the sources of River Stradone and River Larah, the latter a tributary of River Annalee, a tributrary of River Erne, which reaches the ocean in County Donegal. Half way between the lake and Navan junction, it passes through Kells, County Meath.
In Navan, Kells Blackwater joins the River Boyne, more than 25 km before the Boyne reaches the Irish Sea. [1]
