Rivers And Lochs

Scotland has over 100 rivers of varying sizes and over 500 fresh and saltwater lochs.
In addition to 'river', various other terms are used in different parts of the country to indicate the relative size of water courses such as 'water' (as in Ettrick Water in the Borders), 'burn' (as in Coy Burn, a small tributory of the Dee in Aberdeenshire), 'allt' or 'uisge' (Gaelic terms, as in Allt Dearg Mòr and Coir' uisg on Skye).
The term 'loch' is Gaelic for lake and is used throughout the country; there is in fact only one 'lake' in Scotland - the Lake of Menteith in Stirlingshire.

The ten longest rivers in Scotland are:

1. River Tay (120 miles/ 193 km)
2. River Spey (107 miles/ 172 km)
3. River Clyde (106 miles/ 171 km)
4. River Tweed (97 miles/ 156 km)
5. River Dee (85 miles/ 137 km)
6. River Don (82 miles/ 132 km)
7. River Forth (65 miles/ 105 km)
8. River Findhorn (63 miles/ 101 km)
9. River Deveron (61 miles/ 98 km)
10. River Annan (49 miles/ 79 km)

The ten largest freshwater lochs in Scotland by area are:

1. Loch Lomond (27.5 miles²/ 71.1 km²)
2. Loch Ness (21.8 miles²/ 56.4 km²)
3. Loch Awe/Etive (14.9 miles²/ 38.5 km²)
4. Loch Maree (11.0 miles²/ 28.6 km²)
5. Loch Morar (10.3 miles²/ 26.7 km²)
6. Loch Tay (10.2 miles²/ 26.4 km²)
7. Loch Shin (8.7 miles²/ 22.5 km²)
8. Loch Shiel (7.6 miles²/ 19.6 km²)
9. Loch Rannoch (7.4 miles²/ 19.1 km²)
10. Loch Ericht (7.2 miles²/ 18.7 km²)