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Allt Smoo Upper Sink  Falais Smoo [Smoo Cave]  Pothole [Smoo Cave]  Smoo Cave  Mole Hole [Durness]  Wet Weather Cave  Glassknapper's Cave  Antler Cave  Brecka Hole  Keldafoss Hole  Druim Bhlar Overflow Sink  Cubic Meteorite Crater  Druim Bhlar Flood Sinks  Skullsplitter Hole [1]  Skullsplitter Hole [2]  Tourist Trap (The)  Skagill Rock 

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Slagan Mòr (An)

Durness, Leirinmore, Sutherland.

NGR:NC 41800 66900
WGS84:58.56127, -4.72118
Length:Not recorded
Vert. Range:Not recorded
Altitude:30 m
Geology:Sangomore Fm - dolostone
Tags:Shake
Registry:second

Shakehole.

Significant doline structure (c.20 m diameter) at lower end of field on E bank of Allt Smoo, c. 50 m SE of Allt Smoo Upper Sink. Completely choked, including artificial boulder fill (suggesting a deeper hole was present pre-agriculture).

Another shakehole in the same field (at NC 4186 6698 below the coach parking area) is of interest with regard to the resurgence in the SE corner of Smoo Cave's Main Chamber. The latter is hydrologically connected to Allt Smoo Upper Sink, as proven by dye tests.

Alternative Names: An Slagan Mòr, The Slag

Notes: Name means 'the large shallow depression' in Gaelic.

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This entry was last updated: 2025-05-26 10:04:43

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