THE FEESH- WATER LOCHS OP 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 Crunachan, 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 102 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 Aberdeenshire. The fishings in the lochs are 
