Loch Laggan is a freshwater loch

Loch

Loch is the Irish and Scottish Gaelic word for a lake or a sea inlet. It has been anglicised as lough, although this is pronounced the same way as loch. Some lochs could also be called a firth, fjord, estuary, strait or bay...

 situated east of Fort William, in Lochaber

Lochaber

District of Lochaber 1975 to 1996Highland council area shown as one of the council areas of ScotlandLochaber is one of the 16 ward management areas of the Highland Council of Scotland and one of eight former local government districts of the two-tier Highland region...

, Highland

Scottish Highlands

The Highlands is an historic region of Scotland. The area is sometimes referred to as the "Scottish Highlands". It was culturally distinguishable from the Lowlands from the later Middle Ages into the modern period, when Lowland Scots replaced Scottish Gaelic throughout most of the Lowlands...

, 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 A86 road

A86 road

The A86 is a major road in Scotland, United Kingdom, it runs from Spean Bridge to Kingussie. It is a primary route for all of its length.Travelling along this route carries a medium to high risk of suffering a death or serious injury accident according to EuroRAP.-References:...

 from Spean Bridge

Spean Bridge

Spean Bridge is a village, in the Highland region of Scotland.The village takes its name from the Highbridge over the River Spean on General Wade's military road between Fort William and Fort Augustus, and not from Telford's bridge of 1819 which carries the A82 over the river at the heart of the...

 to Kingussie

Kingussie

Kingussie is a small town in the Highland region of Scotland. It is one settlement in the Highland Council ward of Badenoch and Strathspey, and is the capital of the district of Badenoch. It lies beside the A9 road, although the old route of the A9 serves as the town's main street...

 follows along its north bank. Since 1934 Loch Laggan has been a reservoir, retained behind the Laggan Dam

Laggan Dam

Laggan Dam is a dam located on the River Spean south west of Loch Laggan in the Scottish Highlands. The dam is 700 feet long and rises 170 feet above its foundations, and is part of the Lochaber hydro-electric scheme...

, forming part of the Lochaber hydro-electric scheme.

The Loch featured in the popular BBC series Monarch of the Glen as Loch Bogle, and the Eastern end of the Loch includes the largest freshwater beach in the UK.

See Cainnech of Aghaboe for the remains of St Kenneth's Church shown on OS maps.

Trivia

Loch Laggan (mostly its castle) is also featured in the Temeraire series of novels, being used as a base to raise dragons, because of geothermal heat sources.