18 On the Geography and Geology 



Boteille." The wall of rock constituting this cape rather exceeds 

 two miles in length. It is crowned with pine woods, and is 

 backed by an interior range of eminences. It terminates in a 

 cove darkened with high cliffs, and receiving at its bottom a slant- 

 ing cascade. This cove is succeeded on the west (the general 

 direction of the coast from the Peek to Gravel Point being west) 

 by a large and irregular bay, whose east side is a massive green- 

 stone height, but the bottom and west side consist of alluvial 

 banks from 60 to 70 feet high, resting on greenstone. Rounding 

 the ebtuse west angle of this bay we come into another, whose 

 east side is a shingle beach fronting a deposit of sand and gravel, 

 which for one-third of a mile inland is a barren flat ; and then 

 rises in two terraces to 80 or 100 feet, which, however, approach 

 the lake at the east angle of the bay. The west side of this bay 

 is a high shelving cliff, bending round into the usual course of the 

 coast suddenly ; and so passes on to the Black River, in broken 

 rocky shores, interspersed with beaches of sand. 



Of the islands nearly opposite to, and about seven miles from, 

 the Black River, named by Mr. Thompson " The Slate Islands," 

 from their being composed of greenstone slate, I only know that 

 they are large and high. Lieutenant Bayfield, R.N., has examined 

 them. 



The Black River, rising near Long Lake, noticed in p. 17, enters 

 Lake Superior on the west side of a bay of moderate dimensions, 

 with a rocky islet or two on its outskirts. A hill of bleached 

 granite, 300 feet above Lake Superior, about one mile and a half 

 distant, and being at the same time not fiir from the river, affords 

 a good prospect of the adjacent country. Five or six miles on 

 the north, a line of rather high hills, intersected by occasional 

 defiles, ranges parallel with the lake. Their base for several miles, 

 east and west, (as far as the eye can reach,) is buried under a 

 deposit of gravelly sand *, bearing mosses and a few small firs, 

 and stretching down to the lake side, now and then pierced by a 

 knoll of granite. The arenaceous plain is 170 feet thick near the 



* Consisting of very small pebbles of greenstone, granite, and quartz, in 

 a dark brown coarse sand. 



