| Shannon River Basin | |
|---|---|
 | |
 Upper Shannon Basin | |
| Location | |
| Country | Ireland |
| Physical characteristics | |
| Source | |
| • location | Shannon Pot |
| Mouth | |
• location | Loop Head |
| Length | 224 miles |
| Basin size | 11,700 km2 |
| Basin features | |
| River system | River Shannon |
| Tributaries | |
| • left | Owenmore River (County Cavan) |
| • right | Boyle River |
The Shannon River Basin consists of the area containing Ireland's longest river, the River Shannon, and all of its tributaries and lakes. The official Ordnance Survey Ireland length of the Shannon from its Shannon Pot source is 224 miles (360 km) made up of 63.5 miles (102.2 km) tidal water flow and 160.5 miles (258.3 km) freshwater flow.[1]
- ^ "Ordnance Survey (Ireland) Educational Facts". Archived from the original on 2014-09-11. Retrieved 2014-10-09.