RECESSIONAL ICE BORDERS IN BERKSHIRE, MASS. 34 1 



the terminal deposit of this tongue. On the lower shoulder of 

 the hill at the left and to the right of the tracks of the snow 

 slides there hangs a fragment of gravelly morainic deposit about 

 300 feet above the river and belonging to this moraine. A little 

 farther down at a lower level there are heavy morainic deposits 

 continuous with it. These and the hanging fragment are better 

 shown in Fig. 7. It may be noticed in Fig. 6 that the forest 



Fig. 7- — Detail of hanging fragment of moraine shown in Fig. 6. 



extends up the hillside to a certain line near the top, perhaps 

 200 feet from the summit, and that the snow slides begin at this 

 same line. Above this line the rock is practically bare, but 

 below it there is a coating of till which supports the forest. The 

 upper limit of the snow slides marks the limit of the ice during 

 the halt next preceding the time of the Dunbar ice-tongue, and 

 the till coating where the several slides occur may be regarded 

 as a thin lateral submarginal moraine. The end of the tongue 

 at this halt was near Zoar. 



There are many other good examples of lateral moraines. 



