THE FRESH-WATER LOCHS OF SCOTLAND. 269 



greater (over 35 \ square miles). The maximum depth of 282 feet was 

 observed about 1J miles from the east end, and about 5J miles from the 

 west end. The volume of water is estimated at 10,920 millions of cubic 

 feet, and the mean depth at nearly 109 feet. Loch Fannich forms a 

 simple basin, all the contour-lines enclosing continuous areas, though 

 the deepest part (exceeding 200 feet in depth) lies in the eastern 

 half of the loch. The 50-feet area extends from end to end, coinciding 

 approximately with the outline of the loch. The 100-feet area 

 approaches to within half a mile from both ends, and is nearly 6 miles 

 in length ; there is a slight shoaling of the water opposite Rudha Mor 



FIG. 46. LOCH FANNICH, LOOKING EAST. 



(Photoyraph by Mr. T. N. Johnson. M.B., C.M., F.R.S.E.) 



to 103 feet, with deeper water to the east and west. The 1 50-feet area 

 is distant over 2J miles from the west end, and is over 3 miles in 

 length. The 200-feet area is 2| miles, and the 250-feet area If miles, 

 in length, and they approach to within three-quarters of a mile from 

 the east end. The slight shoaling opposite Rudha Mor has already been 

 referred to, and a similar shoaling is observable within the 200-feet 

 contour opposite Fannich Lodge, where the depth decreases from 226 

 feet to 212 feet, and increases again on proceeding eastwards into the 

 250-feet area ; these two shoalings are indicated in the longitudinal 

 section A-B on the map. A sinuosity is also seen in the 200-feet contour 

 off the southern shore, opposite Fannich Lodge, due to the shoaling of 

 the water from 202 to 191 feet, but on the whole the lake-floor may 

 be said to be extremely regular in conformation. The cross section 



