Go to the Main Scottish Cave and Mine Database Search PageMap with: Google Map, or OS Explorer Map from Streetmap.co.uk
Go to the Main Scottish Cave and Mine Database Search Page
Orrin Power Station, Loch Achonachie, Ross & Cromarty.
| NGR: | NH 43606 54373 |
| WGS84: | 57.55233, -4.61528 |
| Length: | 190 m |
| Vert. Range: | 60 m |
| Altitude: | 92 m |
| Geology: | Not recorded |
| Tags: | Sink, Tunnel, ManMade |
| Registry: | second |
Tunnel, Hydro-electric scheme.
Tunnel through which is a pipeline connected to a powerhouse below. This section of tunnel is separated from the higher-level Orrin Tunnel by a section of pipeline at surface. The tailrace outfall point is located at NH 43612 54578.
Alternative Names: None recorded.
Notes: Given length / VR approx.
Hydrographic Resurgences: Loch Achonachie
This entry was last updated: 2025-10-27 13:55:05
Errors or omissions in this information? Submit corrections/additions/comments for this entry to the registrars.
All database content Copyright 2026 Grampian Speleological Group.
Web Registry software by Matt Voysey.