Loch Laggan Reservoir

NN48NE 9 48685 86931

Loch Laggan

Top water level 250 metres above Newlyn Datum [NAT] (centred NN 483 864)

OS 1:10,000 map, 1992.

Extends across portions of map sheets NN38SE, NN48SW, and NN58NW, and into Kilmonivaig parish.

For (associated) Fort William, Aluminium Smelter (centred NN 12556 75030), see NN17NW 16.00.

For associated Laggan Dam (NN 37241 80786), see NN38SE 7.

See also:

NN48NE 1 NN 4987 8755 Eilean an Righ (King Fergus's Lodge) Castle: Island Dwelling

NN48NE 2 NN c. 499 873 Logboat (Loch Laggan 2)

NN48NE 3 Unlocated Flat, bronze axe

NN48NE 4 NN 4987 8755 Eilean an Righ (King Fergus's Lodge) Boat (Loch Laggan 1)

NN48SE 1 NN c. 462 849 Logboats (Loch Laggan 6 and 7)

NN58NW 3 NN c. 533 889 Logboat (Loch Laggan 3)

NN58NW 4 NN c. 5201 891 Logboat ((Loch Laggan 5)

NN58NW 6 NN c. 535 895 Logboat; Wooden Bowl (Loch Laggan 2)

This reservoir was formed by damming the headwaters of the River Spean, in upper Glen Spean, and to provide water power for the Fort William [Foyers] aluminium works [NH42SE 4.00], opened in 1934. The associated dam (Laggan Dam: NN38SE 7) is at NN 37241 80786, at the SW end of the elongated glacial trough. The main inflow is at the NE end, at NN 535 895, near Kinloch Laggan, and a narrowing from the S side between Luiblea [name: NN 4339 8266] and Moy Lodge [name: NN 4412 8350] almost bisects it.

The location assigned to this record is essentially arbitrary. The reservoir extends across portions of map sheets NN38SE, NN48NE, NN48SW, and NN58NW. The SW part of the loch falls within the parish of Kilmonivaig.

Information from RCAHMS (RJCM), 8 June 2006.