﻿1843. BLACK-WATER RIVER. 185 



ridge of the Rocky Mountains at tlie bencl, to the 

 second at the Rock by the River's Side, all the various 

 strata of the valley are seen, and, if properly ex- 

 amined, there is little reason to doubt that a \iey 

 to the geological formations of the entire length of 

 the Mackenzie might be obtained. 



On the left bank, six miles below the Rock by 

 the River's Side, beds of shale appear, having a 

 slight dip to the southward ; and the ridge, which 

 is prolonged on that side from the rock above- 

 named in a north-north-east direction, appears very 

 rugged, with irregularly serrated summits, the crest 

 being apparently extremely narrow. The country 

 between the ridges seems to be pretty even, ex- 

 cept where it is cut by rivulets ; and the high 

 bank of the river is level, though in places it looks 

 hummocky or hilly, because of the gullies which 

 intersect it. 



In the evening we landed to cook suj:)per at the 

 mouth of Black-water River, which issues from a 

 lake of the same name lying on the eastern bank ; 

 and, embarking again to drift during the night, 

 passed a bend of ninety degrees, which the river 

 makes to the westward, and which is known to the 

 voyagers by the appellation of " The Angle " 

 (L^equerre). It marks the passage of the river 

 through another range, of which a high hill on the 

 eastern bank, named Clark's Hill, is the most con- 



