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Lyon Tunnel [Outfall]

Loch Lyon, Lubreoch, Perthshire.

NGR:NN 44515 41553
WGS84:56.54018, -4.53026
Length:4750 m
Vert. Range:20 m
Altitude:345 m
Geology:Auchlyne Formation - semipelite / Carn Mairg Quartzite Formation /
Tags:Rising, Tunnel, ManMade
Registry:second

Tunnel, Hydro-electric scheme.

Water from a surface pipeline aqueduct and an adjacent dammed pool enters a tunnel within bedrock along the Innisraineach Burn (within Glen Lyon at [NN 4595 3701]) & continues in a NNW direction until an outfall point along the S shore of Loch Lyon.

Alternate Names: Loch Lyon Tunnel

Notes: This water diversion tunnel is part of the Breadalbane Hydro Scheme (Killin Section).

Given length & VR approx. (straight line from inlet to outfall using Google Maps).

Hydrographic Feeds: Innisraineach Burn

Hydrographic Resurgences: Loch Lyon

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This entry was last updated: 2025-10-21 04:23:02

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