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Glen Boltachan, NE of St Fillans, Perthshire.
| NGR: | NN 71420 25840 |
| WGS84: | 56.40724, -4.08532 |
| Length: | 1000 m |
| Vert. Range: | Not recorded |
| Altitude: | 368 m |
| Geology: | Ben Ledi Grit Formation - metasandstone |
| Tags: | Sink, Tunnel, ManMade |
| Registry: | second |
Water diversion tunnel adit.
Main intake point for the ESE-WNW-oriented side-branch of the Lednock Tunnel. 7'-6" wide B.W., intake only lined.
Alternate Names: None recorded.
Notes: Part of the Breadalbane Hydro Scheme (St Fillans Power Station).
Given length is approx. Name of ' Tunnel' shown on SSE general layout map.
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This entry was last updated: 2025-10-18 01:02:49
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