91 



high bluffs, which aro from two hundred to three hundred feet above the 

 water level, but in places there are low points which extend out from the 

 bluffs into the lake for one-fourth of a mile or more, and on these numerous 

 tishermen are located. Seining, also other forms of netting, is allowed in 

 the lake, so an abundance of material for study can readily be obtained. 

 The water is usually clear and varies in depth from ten to thirty feet. 



As is well known. Lake Pepin is simply a remnant of what was once 

 the large glacial Mississippi Kiver. At the lower end of the lake the Chip- 

 pewa Kiver empties from the Wisconsin side and carries with it a great 



amount of sediment, cliietiy sand. This deposit has tilled up the bed of 

 the original stream at that point, and consequently dammed it and pro- 

 duced a lake. At all other places along its course what was once the 

 magnificent ^Mississippi, two to four miles in width, is now narrowed down 

 to one, or at most two or three, small channels and a few bayous. At the 

 upper end of the lake the delta is exceedingly well marked. There are 

 three main channels of the river, several lakes and numei-ous bayous, 

 some with water connection and others without, during the di-y season. 



