.A N C I E N T W O 11 K S A T L A K E SUPERIOR. 79 



On the south side of the entrance are some markings (Fig. 30), doubtless of 

 aboriginal origin, and possibly intended to record the virtues of the person or per- 





\/A\ '\'/ 



Indian Ilieroglyphics, Gale's Bluff, near La Crosse. 



sons whose remains are there deposited. The marks are on a soft, yellow, granular 

 limestone ; often mistaken by casual observers for sandstone. They are not deeply 

 impressed, and have evidently been affected by the crumbling of the surface. 



Only an occasional mound was observed along the valley of La Crosse river; 

 and it is believed that no works of any considerable extent exist above this point 

 on the Mississippi. 



