The estuary of the River Nith, opening into Solway Firth south of Dumfries
|- location||Enoch Hill|
|Length||71 mi (114 km)|
|Basin size||1,230 km2 (470 sq mi)|
- For the river in southwestern Ontario, see Nith River.
The River Nith (Scottish Gaelic: Abhainn Nid; Latin: Novius) is a river in south-west Scotland. The Nith rises in the Carsphairn hills of East Ayrshire, more precisely between Prickeny Hill and Enoch Hill, 7 km east of Dalmellington. For the majority of its course it flows in a generally southern direction through Dumfries and Galloway, before spilling into the Solway Firth at Ards point.
For estuaries the principle followed is that the river should be visible at all times. The measurement therefore follows the centre of the river at low tide and the mouth of the river is assumed to be at the coastal high tide mark. In Scotland this does not generally make a significant difference, except for rivers draining into shallow sloping sands of the Irish Sea and Solway Firth, notably the Nith. At low tide, the sea recedes to such an extent that the length of the Nith is extended by 13 km to 113.8 km (70.7 miles), making it Scotland's seventh longest river.
The estuary of the River Nith is an internationally important winter feeding site for waders, geese and other wildfowl, and is for this reason protected at an international level as part of the Upper Solway Flats and Marshes Ramsar site and Special Protection Area. The SPA supports virtually the entire Svalbard population of barnacle geese during winter.
The area also forms part of the Solway Firth Special Area of Conservation, which is protected due the presence of several priority habitats, and as well as populations of sea lamprey and river lamprey. At a national level, the area is a Site of Special Scientific Interest and is within the Caerlaverock National Nature Reserve.
The Nith Estuary National Scenic Area recognises the scenic value of the area. It is one of 40 such areas in Scotland, which are defined so as to identify areas of exceptional scenery and to ensure its protection from inappropriate development by restricting certain forms of development. The Nith Estuary NSA covers 14,337 ha in total, consisting of 14,310 ha of land and intertidal sand and mudflats, as well as a further 28 ha that is below low water. Management of the NSA is the responsibility of Dumfries and Galloway Council, who have produced a management strategy for the area.
Upstream to Downstream:
- Connel Burn
- Afton Water
- Kello Water
- Crawick Water
- Euchan Water
- Mennock Water
- Carron Water
- Cample Water
- Scar Water
- Shinnel Water
- Cluden Water
- Cargen Pow
- New Abbey Pow
- "River Nith (East Ayrshire)"
- "The River Nith Catchment Management Plan" Scottish Environment Protection Agency Archived 2011-07-27 at the Wayback Machine
- 'Celtic Scotland' advertisement on google books
- "Almanac of Scotland"
- "The special qualities of the National Scenic Areas" (PDF). Scottish Natural Heritage. 2010. pp. 33–40. Retrieved 2018-01-24.
- "Site Details for Upper Solway Flats and Marshes Ramsar Site". Scottish Natural Heritage. 2018-05-02. Retrieved 2018-05-14.
- "Site Details for Upper Solway Flats and Marshes SP". Scottish Natural Heritage. 2018-05-02. Retrieved 2018-05-14.
- "Upper Solway Flats and Marshes SPA Descrition". Joint Nature Conservation Committee. 2005-07-21. Retrieved 2018-05-14.
- "Site Details for Solway Firth SAC". Scottish Natural Heritage. 2018-05-02. Retrieved 2018-05-14.
- "Caerlaverock: Designations". Scotland's National Nature Reserves. Retrieved 16 April 2012.
- "Nith Estuary National Scenic Area". Scotland’s Scenic Heritage. Countryside Commission for Scotland. 1978. Retrieved 16 April 2012.
- "National Scenic Areas". Scottish Natural Heritage. Retrieved 2018-01-17.
- "National Scenic Areas - Maps". SNH. 2010-12-20. Retrieved 2018-05-14.
- "Nith Estuary NSA - Management Strategy" (PDF). Dumfries and Galloway Council. Retrieved 2018-05-14.
- Nith Estuary National Scenic Area, South West Scotland Hill Walking Routes