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Finlarig Tunnel [Outfall]

Meall Liath, NE of Killin, Breadalbane, Perthshire.

NGR:NN 58273 35767
WGS84:56.49259, -4.30358
Length:3500 m
Vert. Range:33 m
Altitude:449 m
Geology:Ben Lui Schist Formation - semipelite
Tags:Rising, Tunnel, ManMade, NNR
Registry:second

Tunnel, Hydro-electric scheme (1955-).

Associated with Finlarig Power Station, a significant tunnel through Meall Liath is connected to water pipelines at either end. The northern pipe connects the N portal with Lawers Dam at Lochan na Lairige [NN 5996 3914], whilst the S portal is marked by a pump house from where the waters are carried down an inclined second pipeline to the powerhouse. The station's tailrace outfall point is on the N shore of Loch Tay at [NN 5855 3450].

Alternate Names: None recorded.

Notes: Northern portal / end of N pipeline at [NN 5991 3879]. See 'Finlarig Tunnel [Inlet]' (Site 8980).

Additional intake point along the Allt Tir Artair at [NN 58628 36718].

Given length & VR are approx. and a minimum distance (line between N & S portals). The tunnel is probably longer, as the SSE map shows the path of the tunnel to be kinked (trending SW then SSE downflow).

Hydrographic Feeds: Lochan an Lairige

Hydrographic Resurgences: Finlarig Power Station / Loch Tay

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This entry was last updated: 2025-10-18 04:38:10

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