412 DESCRIPTION OF THE COUNTRY BORDERING 
the lake is approached, in descending, a very decomposible hornblendic rock abuts 
against the more compact rock, and, dipping to the southeast at an angle of from 
3° to 5°, disappears as the portage is reached. : 
West of the house, some good exposures occur, and near the west end of the lake 
are several high mural escarpments, on the American side, resembling those seen on 
Lae du Coq. 
The seventh portage is one thousand and thirty-five paces long, and leads to 
Lower Lily Lake. It passes over a ridge, showing altered clay slates on the south- 
east side, and hornblendic-looking rock at the termination of the portage. The 
hill is sloping and densely wooded. On the American side of the lake are some 
high mural precipices, like those already described. 
The eighth portage is two hundred and thirty paces long, and terminates at Upper 
Lily Lake. On this, as well as the preceding portage, numerous large boulders of 
granitic rocks were seen. 
The lower rock at Upper Lily Lake is an altered argillaceous slate (No. 32), 
which rises to the height of eighty-nine feet above the lake-level. Above this, No. 
33 occurs in thick beds, the rock becoming gradually more and more coarse and 
crystalline, until it graduates into the top rock of the ridge (No. 54). There is, 
however, a well-marked line of demarcation between Nos. 33 and 34, sixty-three 
feet above the top of the clay slates. No. 34 recedes from the main escarpment in 
thick ledges, and reaches the height of three hundred and sixteen feet above the 
- water-level. It is exceedingly tough, and breaks with a concentric fracture. No. 
See ae ag | eee 
a. Argillaceous slate. b. Greenstone. c¢. Porphyritic greenstone. 
33 weathers into mural precipices, and presents something of a columnar structure. 
The slates dip east-southeast at an angle of from 5° to 8°. 
The ninth portage is three hundred paces long, over low ridges of greenstone 
passing into syenite. It leads to Hill Lake. This lake is about seven and a half 
miles long, and varies from a quarter to half a mile in width. It is a beautiful 
sheet of water, and lies completely embosomed amid high rocky hills, some of which 
slope down to the water’s edge, while others present mural escarpments, between 
two and three hundred feet in height. The margin is skirted by a dense forest at 
every point. This lake lies between two trap ridges in its whole length, and con- 
sequently its long diameter conforms to the general bearing of the range, which is 
east and west. 
The tenth portage is six hundred and forty paces long, and leads to Watab Lake. 
The rock exposed on it is a tough, compact greenstone, which appears to lie in 
tabular masses. At the lower end, next Hill Lake, it is rather coarse and crystal- 
line, and at the upper end, fine-grained and more compact. Along the American 
