The River Leven (pron. levven) is a short river in the (administrative) county of Cumbria, falling within the historic county of Lancashire. It drains Windermere from its southernmost point and flows for approximately eight miles (13 Km) into the northern reaches of Morecambe Bay. The upriver limit of tidal flow is close to the village of Haverthwaite. Also at this point is to be found Low Wood Bridge which, until the coming of the railways, was the first bridging point across the river. The Leven is navigable upstream as far as Low Wood, and downstream from Lake Windermere to Newby Bridge.
Apart from Newby Bridge and Haverthwaite the only other settlements on the Leven are the villages of Backbarrow and Greenodd.
The River Leven has one significant tributary, Rusland Pool , which drains a
substantial part of Grizedale Forest and the Rusland Valley into the
upper tidal section of the river. The Leven is a noted salmon river. At spawning time the fish can be seen jumping up the waterfalls at Backbarrow.
