River Clyde

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River Clyde
The River Clyde running through the city of Glasgow
Native name	Abhainn Chluaidh (Scottish Gaelic)
Location
Country	Scotland
State	United Kingdom
Council areas	South Lanarkshire, North Lanarkshire, Glasgow, Renfrewshire, West Dunbartonshire, Inverclyde, Argyll and Bute
City	Glasgow
Physical characteristics
Source	Lowther Hills in South Lanarkshire
• location	South Lanarkshire, Scotland
• coordinates	55°24′23.8″N 3°39′8.9″W / 55.406611°N 3.652472°W / 55.406611; -3.652472
Mouth	Firth of Clyde
• location	Tail of the Bank, between Greenock and Ardmore Point near Helensburgh, Scotland
• coordinates	55°58′12″N 4°45′15″W / 55.97000°N 4.75417°W / 55.97000; -4.75417
Length	110 mi (180 km)[1]
Basin size	1,545 sq mi (4,000 km2)
Basin features
Designation
Ramsar Wetland
Official name	Inner Clyde Estuary
Designated	5 September 2000
Reference no.	1036[2]

The River Clyde (Scottish Gaelic: Abhainn Chluaidh, pronounced [ˈavɪɲ ˈxl̪ˠuəj]) is a river that flows into the Firth of Clyde, in the west of Scotland. It is the ninth-longest river in the United Kingdom, and the third longest in Scotland after the River Tay and the River Spey. It runs through the city of Glasgow. The River Clyde estuary has an upper tidal limit located at the tidal weir next to Glasgow Green.^[3]

Historically, it was important to the British Empire because of its role in shipbuilding and trade.^[4] To the Romans, it was Clota,^[5] and in the early medieval Cumbric language, it was known as Clud or Clut. It was central to the Kingdom of Strathclyde (Teyrnas Ystrad Clut).^[6]