Loch Arkaig (Scottish Gaelic: Loch Airceig) is a body of freshwater in Lochaber, Scotland, to the west of the Great Glen.
It is approximately 12 miles (19 kilometres) in length and lies 140 feet (43 metres) above sea level, and the maximum depth is around 300 feet (90 metres).
The loch is among the last remaining fragments of the Caledonian pinewood, which is native to the UK.[1]
The main tributaries are the Dessarry and the Pean, which flow through the glens of the same names, falling into the loch at the extreme west end, by the settlement of Strathan. The mountains of Lochaber lie to the north, and the Forest of Locheil to the south.
The outflow is through the River Arkaig at the extreme southeast of the loch, which flows eastwards 1+3⁄8 miles (2.2 kilometres) to Loch Lochy, passing Achnacarry.
