The River Nith is a river in south-west Scotland. The Nith rises in the Carsphairn hills of East Ayrshire, between Prickeny Hill and Enoch Hill, 4.4 miles (7.1 km) east of Dalmellington. For the majority of its 70 miles (110 km) course it flows in a south-easterly direction through Dumfries and Galloway and then into the Solway Firth at Airds Point.
The river broadens from a rocky gorge into a mainly gravelled riverbed with suitable pools and reaches which provide good accessible fishing for Salmon, Sea Trout and Grayling.
