The Sèvre Nantaise is a river located in western France, primarily flowing through the Loire-Atlantique department. It is approximately 150 kilometers long and is a tributary of the Loire River. The river is known for its picturesque landscapes and is surrounded by lush greenery, making it a popular spot for outdoor activities such as hiking and cycling. The Sèvre Nantaise plays a significant role in the local ecosystem and economy. It supports various wildlife and is used for agricultural irrigation. Additionally, the river is important for local tourism, attracting visitors who enjoy its natural beauty and recreational opportunities.