OBSTRUCTIONS TO THE ASCENT OF FISH IN RIVERS. 6 31 



feet, in which are log-chutes, overcoming about six feet of the de- 

 scent. Fifteen miles above these are the Lower Quinesec Falls, having 

 a descent nearly per])endicular of sixty feet. A series of rapids extends 

 above this for two miles to the Big Quinesec Falls, which have an 

 almost vertical fall of eighty feet. For the next forty miles along the 

 Brule branch, the water is very rapid, and beyond this the surface is level. 

 The Michigaumee branch is very rapid, and heads in Lake Michi- 

 gaumee. The Mequacnmicum branch is also very rapid, and heads in 

 small lakes. Below Quinesec are two large branches of rapid water on 

 each side. The banks of the streams are generally high and rocky, and 

 for a great part heavily.timbered. The river at the mouth is about one- 

 third of a mile wide; above the first falls, it is about one hundred and 

 sixty yards wide. There are ten steam-mills at the mouth. 



CEDAR RIVER. 



The length of this river is one hundred miles. Its width at the mouth 

 is about one hundred and fifty feet; two miles above the mouth, it has 

 a depth of eight feet; above this, it is shoaler, with rapids; the first 

 rapids have a descent of fifteen feet in one-half mile ; above this are occa- 

 sional rapids ; then a slower current, with a sandy bottom ; and again, 

 rapids, with a rocky and gravelly bottom. The waters are clear and 

 cold ; the banks are high and heavily timbered. There is one steam- 

 mill at the mouth, and three log-dams higher up the river. 



BARQUE RIVER. 



This stream is about fifty miles long; its width at the mouth about 

 forty feet. There is scarcely any current for about one-fourth of a mile ; 

 above this, it is rapid, with a stony bottom for about one-fourth of a 

 mile ; then, for two miles, deep quiet water, about six or eight feet deep, 

 with, in many places, marshy shores ; above this, it is rapid, with high 

 banks, and heavily timbered. The water is clear and cool. There are 

 no mills on the river. 



FORD RIVER. 



This river has a length of about one hundred and twenty-five miles ; 

 its width at the mouth is one hundred and fifty feet ; it has a depth for 

 two or three miles of about three feet ; above that, it is shallower, with 

 occasional rapids. It has high banks heavily timbered. There is one 

 steam-mill at the mouth, and no dams on the river. 



ESC AN ABA RIVER. 



The length of the river is about seventy miles ; its width for fifteen miles 

 above the mouth is about seventy-five feet; rapids and a mill-dam are 

 found three miles above the mouth ; above the dam the river runs over 

 a flat ledge ; it has high banks, and is heavily timbered. 



