River Forth
Overview
 
The River Forth 47 km (29.2 mi) long, is the major river draining the eastern part of the central belt
Central Belt
The Central Belt of Scotland is a common term used to describe the area of highest population density within Scotland. Despite the name, it is not geographically central but is nevertheless situated at the 'waist' of Scotland on a conventional map and the term 'central' is used in many local...

 of Scotland
Scotland
Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

.

The Forth rises in Loch Ard
Loch Ard
Loch Ard is a body of fresh water in the Loch Lomond and the Trossachs National Park of the Stirling District in Scotland. -Overview:...

 in the Trossachs, a mountainous area some 30 km (18.6 mi) west of Stirling
Stirling
Stirling is a city and former ancient burgh in Scotland, and is at the heart of the wider Stirling council area. The city is clustered around a large fortress and medieval old-town beside the River Forth...

. It flows roughly eastward, through Aberfoyle
Aberfoyle
Aberfoyle is a village in the region of Stirling, Scotland, northwest of Glasgow.The town is situated on the River Forth at the base of Craigmore...

, joining with the Duchray Water and Kelty Water, and out over the flat expanse of the Flanders Moss
Flanders Moss
Flanders Moss is an area of bogland in the Carse of Stirling in central Scotland.It lies between the villages of Thornhill to the north and Kippen to the south....

. It is then joined by the River Teith
River Teith
The River Teith in Scotland flows from the north-west into the River Forth near Drip north-west of Stirling.- Etymology :The name comes from the Scottish Gaelic Uisge Theavich, which translates into English as the "pleasant river".- Course :...

 (which itself drains Loch Venachar
Loch Venachar
Loch Venachar is a freshwater loch in Stirling district, Scotland, situated between Callander and Brig o' Turk...

, Loch Lubnaig
Loch Lubnaig
Loch Lubnaig is a small loch near Callander in the Stirling council area, Scotland. It lies in the former county of Perthshire....

, Loch Katrine
Loch Katrine
Loch Katrine is a freshwater loch in the district of Stirling, Scotland. It is roughly 8 miles long by 2/3 of a mile wide and runs the length of Strath Gartney...

, and Loch Voil
Loch Voil
Loch Voil is a small freshwater loch in Scotland. It is a short, narrow loch approximately 5 km in length, It is separated from Loch Doine by the River Larig and is drained at its northern end by the River Balvaig at Balquhidder. The Loch can be reached by a small single track road from...

) and the River Allan
Allan Water
The Allan Water is a river in central Scotland, United Kingdom. Rising in the Ochil Hills, it runs through Strathallan to Dunblane and Bridge of Allan before joining the River Forth....

, before meandering through the ancient city of Stirling.
 
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