The River Finn is a river located in County Donegal, Ireland. It is approximately 30 kilometers long and flows into the Lough Erne system. The river is known for its scenic beauty and is a popular spot for fishing, particularly for salmon and trout. The River Finn is part of the Finn Valley, which is characterized by lush landscapes and rich biodiversity. The river's catchment area supports various wildlife and plant species, making it an important ecological zone. Additionally, the river contributes to local agriculture and recreation, enhancing the community's quality of life.