Beinn Spionnaidh is a mountain of 773 m in Sutherland, the northwestern tip of the Scottish Highlands. It is a Corbett located west of Loch Eriboll and northeast of Cranstackie and Foinaven. It is like its neighbours in that the top, a 1 km long whaleback running southwest to northeast, is covered with loose, broken quartzite. A steep spur to the northwest, Cioch Mhor, provides one route to the top, and good views of the Kyle of Durness; the gentler slope to the southeast is tiring due to the loose rock on the upper section.

Cranstackie is a mountain of 801 m in Sutherland, the northwestern tip of the Scottish Highlands. It is a Corbett located west of Loch Eriboll and northeast of Foinaven. Like Foinaven and Beinn Spionnaidh to the northeast, its top is covered with loose, broken quartzite. The slope is much steeper on the west side than the east, but neither approach is easy due to the covering of loose rock.