THE FRESH- WATER LOCHS OF SCOTLAND. 153 



Near the source of the river is the little Loch Spey, and another small 

 hill-loch lies a short distance to the south. Proceeding eastward from 

 Loch Spey for about 8 miles, the river, having been joined by many 

 mountain streams, receives the outflow from Loch Crunachan, lying in 

 Glen Shirra, about 2 miles north of the head of Loch Laggan in the 

 Lochy basin. About 2 miles farther down, the Markie burn flows in from 

 the north and the Mashie water from the south ; and another 2 miles 

 further down, the Allt Breakachy flows in from the south, bearing the 

 outflow from Loch Gaol na Doire ; while about 4 miles still further down, 

 the river Truim flows in from the south, carrying the outflow from Loch 

 na Cuaich. At Newtonmore the river Calder flows in from the north, and 

 near Kingussie the river Tromie comes in from the south, bearing the 

 outflow from a connected series of three lochs (Lochs an Duin, Bhradain, 

 and an t-Seilich). About 4 miles down from Kingussie, Loch Insh lies 

 in the direct course of the river ; and in the immediate vicinity the river 

 Feshie flows in from the south. About 3 miles farther down, the river, 

 now flowing in a northerly direction, receives the overflow from Loch 

 Alvie, lying immediately to the west, and from Loch Gamhna and Loch 

 an Eilein, lying immediately to the east. At Aviemore the river Druie 

 flows in from the east, bearing the outflow from Loch Morlich and Loch 

 Eunach ; and a short distance further down, Loch Phitiulais lies close to 

 the river on the east ; while Loch Garten lies to the east near Boat of 

 Garten. About 4 miles down from Boat of Garten the river Nethy comes 

 in from the south-east, and about 15 miles farther down, the river Avon, 

 probably the most important of all the tributaries of the Spey, flows in 

 from the south-east, carrying the outflow from Loch Avon and Loch Builg. 

 Thence the river pursues a sinuous course to the sea, the river Fiddich 

 coming in on the east, about 10 miles down from the entrance of the 

 river Avon. 



Of the numerous small lochs within the basin, thirteen were sounded 

 by the Lake Survey, viz. Lochs Cruuachan, Gaol na Doire, na Cuaich, 

 an Duin, Bhradain, an t-Seilich, Insh, Alvie, Gamhna, an Eilein, Morlich, 

 Phitiulais, and Builg. The most important of the lochs which could not 

 be sounded are Lochs Eunach and Avon, lying at a high elevation in the 

 Cairngorm mountains. With one exception, the lochs surveyed exceed 

 half a mile in length, five of them exceeding a mile in length ; in maximum 

 depth they vary from 25 to K2 feet, nine exceeding 50 feet in depth. 

 Loch Insh contains the largest volume of water, while Loch Morlich covers 

 the largest area, nearly half a square mile. Loch Builg lies on the border 

 between the Spey and the Dee basin, to which latter basin it contributes 

 to some extent, as mentioned when dealing with the lochs of the Dee basin. 

 Most of the lochs are situated in Inverness-shire, Loch an Duin lying 

 partly in Perthshire and partly in Inverness-shire, the county boundary 

 crossing the central part of the loch ; but Loch Builg lies in Banffshire, 

 just on the border of Aberdeeushiro. The fishings in the lochs are 



