The Nelson River is a major river in northern Manitoba, Canada. It flows approximately 644 kilometers (400 miles) from Lake Winnipeg to Hudson Bay. The river is an important waterway for transportation and has been historically significant for Indigenous peoples and fur traders. The river's watershed covers a large area, contributing to the ecosystem of the region. It is known for its diverse wildlife, including fish species like walleye and northern pike. The Nelson River also plays a crucial role in hydroelectric power generation, with several dams built along its course, such as the Kettle Generating Station.