
D. MILNE HOME ON THE PARALLEL ROADS OF LOCHABER, 641 
formed a sort of cul de sac, where the ice, arrested in its farther progress, and 
melting, dropped the boulders. 
On Craig Dhu, the boulders, in so far as not rounded, have their longer axis, 
most frequently east and west in direction. The following notes from my Field 
Book (p. 41) refer to these :—‘ A little above the 1391 level, found boulder 
lying on bare rock here forming a flat surface, glaciated like the rest from 
W.by N, (At this time I was inclined to glacier views.) The boulder, therefore, 
must have come here after glaciation of rocks. Longer axis of boulder E. and W. 
Standing at it, and looking towards west, I see that a line from that direction 
clears all the hills, and that there is an opening for a current to have flowed from 
west towards and upon Craig Dhu. Found masses of white quartz rock glaciated 
from west. A boulder lying on top of this rock, with longer axis W.by S. Ata 
level of 1751 feet, found boulder with longer axis W. by S. Near Glen Glaster 
Col, 1445 feet above sea, boulder with longer axis W. by S. Another, 8 x 4 x 4 
feet with longer axis W. by 8. Another of grey granite a little below summit 
level (1075 feet) with longer axis W.N.W. (7 x 6 x 3 feet). It stands very 
oddly, not resting on its wide surface of 6 feet, but on its narrow edge of 3 feet. 
Another boulder 12 x 6 x 6 feet at 918 feet level, with longer axis N.W. by 
W. Another 12 x 6 x 5 feet, with longer axis N.N.E.” 
The boulders just mentioned are situated along the flattish valley lying - 
between Craig Dhu and Craig Coinnichte on the south side, and Craig Willeim 
on the north side. This valley runs in an east and west direction, so that it is 
most probable that the boulders, almost all of which lie with their longer axis 
in the same direction, have been put into that position by the agency of a 
stream of some kind which flowed through the valley from the west. 
It was through this valley that the Lake of Glen Roy, when it stood at the 
middle shelf, discharged. But it is not probable that the stream from that lake 
would have had power to bring these boulders, or put them into the positions 
they occupy. The boulders, moreover, are above the level of the stream, 
In Glen Gluoy there are several boulders which deserve notice. Glen Gluoy 
is the narrowest of all the valleys, with sides high and steep. There is a boulder 
9 x 8 x 6 feet, on the hill which separates Glen Fintec from Glen Gluoy. It 
is at a height of 812 feet above the sea, The hill here slopes towards W.S.W. 
at an angle of about 45°. There is a thick covering of drift on the hill above, 
and immediately below, there is a striated rock. This boulder must have been 
brought here from the west by some agent, such as floating ice, which stranded 
on the hill. 
At another spot there are several large boulders, also on a steep slope, at a 
height of about 866 feet above the sea. They stand up somewhat conspicuously 
above the drift in which they are partially imbedded. 
How came these boulders into this position ? 
