Beauly Firth Beauly Firth The Beauly Firth is a firth in northern Scotland. It is effectively a continuation of the Moray Firth westward, and is bounded at one end by Beauly and at the other by Inverness (North Kessock and South Kessock). The Kessock Ferry crossed at the eastern end since the 15th Century. Today, the A9 crosses on the Kessock Bridge. The River Ness empties into the Beauly Firth after flowing from Loch Ness by way of Inverness. The Beauly Firth has several names in Scottish Gaelic including "Linne Fharair", "Poll an Ròid" and "Caolas Uisge a' Mhanachainn" - the latter
Firth "firth" (e.g. the Minch and Loch Torridon); instead, these are often called sea lochs. Before about 1850, the spelling "Frith" was more common. A firth is generally the result of ice age glaciation and is very often associated with a large river, where erosion caused by the tidal effects of incoming sea water passing upriver has widened the riverbed into an estuary. Demarcation can be rather vague. The Firth of Clyde is sometimes thought to include the estuary as far upriver as Dumbarton, but the Ordnance Survey map shows the change from river to firth occurring off Port Glasgow, while