River Earn

River Earn Scottish Gaelic: Uisge Èireann
The River Earn viewed from Forteviot bridge.
Location
Country	Scotland
Physical characteristics
Source	St Fillans
• location	Loch Earn, Perth and Kinross, Scotland
• coordinates	56°23′27″N 4°06′44″W / 56.3907°N 4.1122°W / 56.3907; -4.1122
• elevation	99 m (325 ft)
Mouth	Firth of Tay, North Sea
• location	Between Perth and Newburgh, Fife, Scotland
• coordinates	56°21′N 3°19′W / 56.350°N 3.317°W / 56.350; -3.317
• elevation	0 m (0 ft)
Length	74 km (46 mi)
Basin features
Tributaries
• left	River Lednock
• right	River Farg

The River Earn (Scottish Gaelic: Uisge Èireann) in Scotland leaves Loch Earn at St Fillans and runs east through Strathearn, then east and south, joining the River Tay near Abernethy. The Earn is about 74 kilometres (46 mi) long. It passes by Comrie, Crieff (where it is joined by the Pow of Inchaffray) and Bridge of Earn. The river is fast flowing, with many shoals, whilst the surrounding land is generally flat and is occasionally subject to flooding.^{[citation needed]}

Near to the River Earn lay the ancient Strageath Roman Camp. This camp was one of a series of camps used by the Romans to construct their invasion of the north; other notable camps in this chain are Ardoch, Stracathro, Battledykes, Raedykes and Normandykes.