Garbh Uisge is a river of approximately 7 km in the

Trossachs The Trossachs (; gd, Na Tròiseachan) generally refers to an area of wooded glens, braes, and lochs lying to the east of Ben Lomond in the Stirling council area of Scotland. The name is taken from that of a small woodland glen that lies at the ...

of Scotland just north-west

Callander Callander (; gd, Calasraid) is a small town in the council area of Stirling, Scotland, situated on the River Teith. The town is located in the historic county of Perthshire and is a popular tourist stop to and from the Highlands. The town ser ...

. It is the outflow of

Loch Lubnaig Loch Lubnaig (Loch Lùbnaig in Gaelic) is a small freshwater loch near Callander in the Stirling council area, Scottish Highlands. It lies in the former county of Perthshire. It is part of the Loch Lomond and The Trossachs National Park. The l ...

and joins with Eas Gobhain west of Callander to form the

River Teith The River Teith is a river in Scotland, which is formed from the confluence of two smaller rivers, the '' Garbh Uisge'' (River Leny) and '' Eas Gobhain'' at Callander, Stirlingshire. It flows into the River Forth near Drip north-west of Stirlin ...

. The name of the river, Garbh Uisge, is

Gaelic Gaelic is an adjective that means "pertaining to the Gaels". As a noun it refers to the group of languages spoken by the Gaels, or to any one of the languages individually. Gaelic languages are spoken in Ireland, Scotland, the Isle of Man, and Ca ...

for "Rough Water", reflecting the nature of the river. The river is often informally called the River Leny due to the Falls of Leny, where the river crosses the

Highland Boundary Fault The Highland Boundary Fault is a major fault zone that traverses Scotland from Arran and Helensburgh on the west coast to Stonehaven in the east. It separates two different geological terranes which give rise to two distinct physiographic terr ...

, and because it flows through the Pass of Leny.

References

Rivers of Stirling (council area) Tributaries of the Teith {{Scotland-river-stub