THE FRESH WATER LOCHS OF SCOTLAND. 
69 
soundings of 52 and 54 feet having been obtained therein. The main 
50-feet basin is about 7| miles in length, occupying the great body of 
the loch east of Eilean nam Faoileag, and covering an area exceeding 
5 square miles. The 100-feet basin is nearly 7 miles in length, extend- 
ing from between the mouths of the Killichonan burn and the Allt 
Camghouran towards the east end of the loch. The 200-feet basin is 
6 miles in length, stretching from within a quarter of a mile from the 
FIG. 20. GOGH RANNOCH. 
(Photograph by Miss M'Pherson.) 
east end to opposite the house Talla Bheith on the northern shore. The 
main 300-feet basin is nearly 4 miles in length, stretching from less 
than half a mile from the east end to opposite Dali on the southern 
shore, and separated from it by an interval of a quarter of a mile is an 
isolated sounding of 304 feet. Within the 300-feet basin the bottom 
sinks in three places along the central axis of the loch below the 400- 
feet line. The easternmost of these three 400-feet basins is the largest 
and deepest, situated about miles from the east end, about two-thirds 
