206 B. N. A. BOUNDARY COMMISSION. 
Place. Direction. | Place. 
Northward from N. W. Angle to Rat | 
Portage. 
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TR ER S 38° W Rat Portage Fall.......... $8 138° W 
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469. It will be observed from the above table, and on reference to the 
map, that the direction of glaciation is very constantly from the north- 
east and north-north-east, and only appears to suffer occasional slight 
deflections when brought in contact with masses of resistant rock run- 
ning athwart its course. In the vicinity of Lacrosse Island, the grooves 
shuw more westing than they do northward of that place to Rat Portage. 
Between Ka-ka-ke-wabec and Picture-rock Point, a well-marked westward 
deflection takes place, the ice appearing to have been crowded off the high — 
rocky land to the south. The pressure exerted by the ice in this neighbour- 
hood, as it forced its way among the rocky islands and channels, has 
been exceptionally severe. South of this, the grooving resumes its nor- 
mal direction, but at the mouth of the Angle Inlet again takes a marked 
sweep westward, toward the low-lying country in that direction, and 
away from the high rocky islands. The ice, as it has passed down over 
the rocks forming the north shore of Sand-hill Lake, has left remarkably 
uniform traces. Southward, among the islands, the ice appears to have 
turned a little from the west. The south end of Bigsby Island, shows a 
convergence of directions, as though ice coming from the eastern and 
western divisions of the lake had met at an acute angle, and overridden it 
to form a junction. The glaciation here also is very severe 
470. At two places on the west shore of this island, glaciation in the 
ordinary direction, which gives form to the rock masses, was observed to 
be superinscribed with coarser scratches, nearly east and west in diree- 
tion, Onasmall area of granite and greenstone rock, forming the N. E. 
point of the southern promonotary of the lake, a remarkable series of striz 
exist. The most important direction, and that with which the form of 

