THE FRESH- WATER LOCHS OF SCOTLAND. 
237 
Hotel, where the grits have been made schistose, and where the felspars 
have been partially broken down and reconstructed. Near the outcrop 
of the Kishorn thrust, west of Glen Carron, the Lewisian gneiss is 
sheared and rolled out, passing into flaser gneiss and schist with a 
platy or fluxion structure. 
East of the Moine thrust, which runs south from Dundonnell by 
Loch an Nid, the heights of Kinlochewe, and Loch Coulin to Glen 
Carron, the area represented on the map is occupied by crystalline 
schists of a remarkably uniform type. They consist mainly of flaggy 
granulitic quartzose schists and mica-schists, with prominent belts of 
garnetiferous muscovite-biotite schists. The latter are well developed 
on Fionn Bheinn, north of Achnasheen, and on Sgurr Mor Fannich, 
where they form conspicuous crags. Near the Moine thrust, and, 
» indeed, for some miles to the east of the plane of that thrust, the 
Eastern or Moine schists have a persistent dip to the south-east. In 
the Fannich mountains they are over-folded on a stupendous scale, 
and similar evidence is obtained in the group of mountains north of 
Achnasheen. 
Reference must now be made to the faults that affected the area after 
the post-Cambrian thrusts. Of these by far the most important is the 
great line of displacement that crosses the region in a north-west and 
south-east direction, coinciding with the long axis of Loch Maree, 
which may be termed the Loch Maree fault. It has been traced in a 
north-west direction along the river Ewe, by the south margin of Loch 
Ewe, towards Loch an Drainc, where the Torridon Sandstone on the 
north-east side is faulted down against the Lewisian gneiss at Poolewe. 
At Kinlochewe this dislocation has been traced up Glen Dochartie and 
onwards in the direction of Ledgown. Indeed, the probable con- 
tinuation of this fault has been recently found far to the south-east — in 
the basin of the Conon. Where the line of fault is not obscured by 
drift, it gives rise to a prominent feature on the surface of the ground. 
This powerful fault shifts the outcrops of the Moine and Kishorn 
thrust-planes, and likewise of the overfolded strata associated with 
these thrusts. It further shifts the outcrop of the normal fault in 
Glen Fhasaigh, which runs in a north-east direction between the head 
of Loch Maree and Lochan Fada (see map). The continuation of the 
Fhasaigh fault is to be found in Glen Grudie, on the south side of Loch 
Maree, so that its outcrop is shifted at least for a distance of two miles 
by the Loch Maree dislocation. 
In the north-west part of the area, in Isle Ewe, and in the pro- 
montory between Loch Ewe and Gruinard Bay, there is a strip of 
Triassic Sandstone (/ on map) thrown down by two powerful faults. 
Throughout the Loch Maree district, and especially in the moun- 
tainous region embracing the Torridon Sandstone and the Cambrian 
quartzite, there is evidence of intense glaciation. During the climax 
