|Mouth||Celtic Sea at Spanish Island|
|Length||34 km (21 mi) |
|Source elevation||494 metres (1,620 ft)|
|Basin area||301.7 km² (116.5 sq mi)|
Its five main tributaries are, the Saivnose, Coarliss, Achrinduff, Glounaphuca and Clodagh. It is listed as having Quality A water, which means its pollution levels are far below the national average. Fish found in the river include Brown Trout, Sea Trout and Salmon. The main settlement on the river is Skibbereen.
-  - riverilen.com