THE WORK OF SNOW AND ICE 



225 



Fig. 183. Shove of shore ice where the shore is marshy. The ice of the 

 frozen marsh is pushed up into ridges. (Buckley, Wis. Geol. Surv.) 



Fig. 184. The shove of ice on the shore of Lake Mendota, Wis. (Photo. 



by Buckley.) 



