stations is fed to Auchterewe, near Fort William, by overhead transmission lines, where there is a switching station and control centre. From Auchterewe, 132 kV lines distribute the power in several directions. Those over the Corrieyarrick Pass are very exposed, reaching a height of AOD, and high frequency pulses are injected into the lines to enable faults to be located. Benefits The construction of the hydro-electric stations has brought some benefits to the area, which are wider than just providing electricity to remote communities. The dam at Dundreggan was built at a location where there had previously been a waterfall, which made the migration of salmon up the river impossible. However, a Borland fish pass, which works in a similar way to a navigation lock, was constructed at the site, and unlike the neighbouring River Garry, where salmon stocks have suffered serious decline, salmon have established themselves on the river, and the population is stable or increasing. While the hydro-electric schemes were being constructed in both Glen Moriston and Glen Garry, the roads running through the glens were upgraded. The main route from Invergarry to Kyle of Lochalsh formerly ran along Glen Garry to the hamlet of Tomdoun, turned northwards to cross Loch Loyne at a narrow point near the centre of the present loch, and continued to the north-west to the Cluanie Inn, at the western end of the present Loch Cluanie. When the level of Loch Loyne was raised, the crossing point was submerged, and a new A87 road was constructed, turning northwards from the old road near the eastern end of Loch Garry, running along part of the shore of Loch Loyne, and crossing over the River Loyne beyond the eastern end of the loch, to join the A887 Invermoriston to Kyle of Lochalsh road at Bun Loyne. An original bridge became visible in 2012 due to low levels of rainfall, and corresponding low levels in the loch. Bibliography References External links Moriston