250 R. BELL. — DIFFERENTIAL RISING OF LAND ALONG BELL RIVER. 



of about 50 feet above Grand lake, and there is a gentle descent from this 

 lake to where the route falls into Brushy creek. 



The writer had not time to personally examine the westward termina- 

 tion of the arm, which is about four miles beyond Sandy portage and 

 which may be connected with some old river channel. 



On leaving Simon lake the Bell river is rather narrow, but at two 

 miles down it falls, like a branch, into a much wider channel, which 

 continues upward to the southwest with curving parallel shores, and 

 looks as if a large river had formerly flowed through it, but at present 

 only a brook falls into it. 



In connection with the subject of this paper, the fact may be worth 

 mentioning that the present height-of-land at the northern extremity of 

 Grand lake corresponds with the boundary line between the broad Lau- 

 rentian region to the southward and the Great Belt of the Huronian 

 rocks extending from lake Superior to lake Mistassini, a distance of 700 

 miles, and which is 150 miles wide on a north line from this localitv. 



