THE FRESH \\ATKR 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. LOCH 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 Dall 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 1 J miles from the east end, about two-thirds 



