66 
BATHYMETRICAL SURVEY OF 
the other lochan weeds were seen in several places, with a little open 
water in the eastern half. 
To the north of the north-eastern end of Loch Laidon lies the 
little Lochan a’ Chlaidheimh, where three counties (Perthshire, 
Argyllshire, and Inverness-shire) meet. This lochan was visited on 
May 14, 1902, but was not sounded, as there was no boat on it. It is 
evidently very shallow in all parts, full of rocks and boulders, a rock 
showing above water even in the very centre, and all along the shores 
rocks are numerous, extending in lines out from the shore. A couple of 
miles to the east of Lochan a’ Chlaidheimh lies Lochan Sron Smeur, 
next to be dealt with, on which there was a boat. 
FIG. 19. LOCHAN SBON SMEUR. 
( Phofog ra ph by H. C. Lamb.) 
Lochan Srdn Smeur (see Plate XVIII.). — Lochan Sron Smeur (or 
Sron Smear) is situated a little to the east of the road running from 
Hannoch to Loch Ossian, and is said to contain small black trout, but 
is strictly preserved. It is over half a mile in length, less than a quarter 
of a mile in maximum breadth, the mean breadth being one-seventh of 
a mile, or 25 per cent, of the length. Its waters cover an area of over 
50 acres (or about one-twelfth of a square mile), and it drains an area of 
nearly two square miles, nearly twenty-four times the area of the loch. 
It was surveyed on May 12, 1902, the maximum depth observed being 
33 feet. The volume of water contained in the lake is estimated at 
22,592,000 cubic feet, and the mean depth at 10-3 feet, or 31 per cent, 
of the maximum depth . The loch is of simple conformation, the western 
