Glen Fruin (Scottish Gaelic: Gleann Freòin) is a glen in Scotland, adjacent to Loch Lomond.
It contains the Fruin Water which flows into the loch, and a military bypass road, now the A817 road, known as the Glen Fruin Haul Road, which goes from the A82 up the glen and over the top of the hills to HMNB Clyde at Garelochhead. It was originally built along with the Garelochhead Bypass Road in order to directly link RNAD Coulport and Faslane to the A82 road in order to permit easy transportation of warheads to the naval base from the Atomic Weapons Establishment.
It was the site of the Battle of Glen Fruin, one of the last clan battles in Scotland, in which an estimated 300 warriors on foot from the MacGregor Clan claimed victory over an estimated 600-800 men from the Colquhoun Clan on horse-back.
The road from Glen Fruin to Loch Long was known as Scottish Gaelic: Rathad Mòr nan Gàidheal, (in English "The High Road of the Gaels/Highlanders").
Coordinates: 56°3′13″N 4°44′37″W / 56.05361°N 4.74361°W / 56.05361; -4.74361
... The Battle of Glen Fruin was fought on February 9, 1603 between the Clan Gregor and its allies on one side, and the Clan Colquhoun and its allies on ... Glen Fruin is located in the Loch Lomond area, in the county of Dunbartonshire, Scotland ...
... The Battle of Glen Fruin took place in 1603 where the MacGregors were victorious, defeating five hundred Clan Colquhoun men, three hundred of whom were on horseback, by ... It wasn’t until the 18th century that the enmity between the clans was laid to rest when, at Glen Fruin on the site of the massacre, the chiefs of the Clan Gregor and Colquhoun met and ... MacGregors for poaching, the chief of the Clan Gregor, Alastair of Glen Strae was condemned by the Privy Council ...