Dumbarton Castle
| Dumbarton Castle | |
|---|---|
| Dumbarton, Scotland GB grid reference | |
 View of Dumbarton Castle from across the River Clyde | |
| Site information | |
| Owner | Scottish Government |
| Controlled by | Historic Environment Scotland |
Open to the public | Yes |
| Location | |
| Location of Dumbarton Castle within West Dunbartonshire | |
%22%3E%3Ctext%20x%3D%2250%25%22%20y%3D%2250%25%22%20text-anchor%3D%22middle%22%20dominant-baseline%3D%22middle%22%20fill%3D%22%2354595d%22%20font-size%3D%2216%22%20font-family%3D%22sans-serif%22%3EDumbarton%20Castle%20is%20located%20in%20West%20Dunbartonshire%3C%2Ftext%3E%3C%2Fg%3E%3C%2Fsvg%3E)  Dumbarton Castle Location within West Dunbartonshire | |
| Coordinates | 55°56′10″N 4°33′46″W / 55.9360°N 4.5628°W |
| Site history | |
| Built | Site occupied since the Iron Age |
| In use | Still in use today |
Dumbarton Castle (Scottish Gaelic: Dùn Breatainn, pronounced [t̪unˈpɾʲɛʰt̪ɪɲ]; Welsh: Alt Clut) has the longest recorded history of any stronghold in Scotland. It sits on a volcanic plug of basalt known as Dumbarton Rock which is 240 feet (73 m) high and overlooks the Scottish town of Dumbarton.