The River Nith is a river located in Scotland, flowing through the region of Dumfries and Galloway. It stretches approximately 56 miles (90 kilometers) from its source in the Lowther Hills to its mouth at the Solway Firth. The river is known for its scenic beauty and diverse wildlife. The Nith is significant for both ecological and recreational purposes. It supports various fish species, including salmon and trout, making it a popular spot for anglers. Additionally, the river passes through several towns, including Dumfries, which is rich in history and culture.