Loch Stack is a large, irregularly shaped freshwater loch in the Northwest of Scotland. It lies approximately four miles (six kilometres) southeast of Laxford Bridge and is surrounded by mountains. Ben Stack rises steeply from the loch's southwestern shore and Arkle lies directly to the north. The outflow from Loch More, which is about 1 mile (1.5 kilometres) south of Loch Stack, is carried (via Loch nan Ealachan) by the small river An Earachd into Loch Stack.
Survey
The loch was surveyed1 between 6 and 8 September 1902 by T.N. Johnston and James Murray and later charted2 as part of the Sir John Murray's Bathymetrical Survey of Fresh-Water Lochs of Scotland 1897-1909.
References
"Bathymetrical Survey of the Fresh-Water Lochs of Scotland, 1897-1909, Lochs of the Laxford Basin". National Library of Scotland. Retrieved 6 May 2015. http://maps.nls.uk/bathymetric/text.cfm?cid=1302 ↩
"Loch Stack (Laxford Basin) (Vol. 5, Plate 9) - Bathymetrical Survey, 1897-1909 - National Library of Scotland". National Library of Scotland. Retrieved 6 May 2015. http://maps.nls.uk/view/74422299 ↩