Freshwater Lochs: Scotland's Inland Lakes

A freshwater loch is a lake or inland body of fresh water, distinct from a sea loch (a saltwater fjord or inlet). The term "loch" is Scottish Gaelic/Irish for lake or fjord. Freshwater lochs are typically glacial in origin, formed by ice scouring basins in bedrock. Famous examples include:

• Loch Ness: Deep, voluminous, famed for the "Nessie" legend.
• Loch Lomond: Largest surface area in Great Britain; part of a national park.
• Loch Morar: Deepest in the British Isles (310 m).
• Loch Awe, Loch Tay, Loch Katrine: Notable for scenery, hydropower, and water supply.

These lochs support unique ecosystems (Atlantic salmon, Arctic charr, freshwater pearl mussels), provide drinking water, hydroelectricity, and recreation, and are central to Scottish cultural identity.