THE FRESH-WATER LOCHS OF SCOTLAND. 
73 
LOCHS OF THE OBAN BASIN. 
The only locli to be dealt with here is the little Loch Gleann a’ Bhearraidh, 
lying about 2 miles to the south-south-west of Oban, from which the 
town draws its water-supply. It is a good trout loch, but the fishing is 
preserved. 
Loch Gleann a* Bhearraidh (see Plate XXVIII.). — Loch Gleann a’ 
Bhearraidh (or na Gleann na Bheathrach) is a long narrow loch, trending 
south-west and north-east, and about two-thirds of a mile in length, by one- 
eighth of a mile in maximum breadth, covering an area of about 29 acres, 
and draining an area of about half a square mile. The loch is cut into 
two portions by the narrows near the upper (south-west) end, where the road 
crosses the loch over a bridge. The upper portion beyond the bridge is 
shallow, the greatest depth being 9 feet ; but the north-eastern portion is 
almost entirely covered by more than 1 0 feet of water, and there is a deep 
basin with a maximum depth of 48 feet near the lower end. The volume 
of water is estimated at 16 million cubic feet, and the mean depth at 13 
feet. The basin is simple, and of the whole area 89 per cent, is covered 
by less than 20 feet of water, while 4 per cent, exceeds 40 feet in depth. 
When the loch was surveyed on May 28, 1903, the elevation above the 
sea could not be determined, but the water was standing up to the edge 
of the overflow passage at the weir. 
