312 THE ICE AGE IN NORTH AMERICA. 



now buried to a depth of 300 feet for a distance of many 

 miles. 



R. W. Ells calls attention, also, to the numerous buried 

 channels* in the Eastern Townships, in the province of Que- 

 bec, in the vicinity of Lake Memphremagog. These are, to 

 a considerable extent, explored at the present time for the 

 sake of the gold found in them. 



These are but a few of the innumerable facts indicating 

 that before the great Ice Age not only the Ohio, but nearly 

 all the streams of the eastern United States, occupied deeper 

 channels than they now do. There were then probably no 

 Great Lakes, and few if any waterfalls, as there are now no 

 lakes and waterfalls south of the glaciated region. All the 

 rivers had cut their channels down so low that they drained 

 to the bottom any lakes that may have once existed. 



* "Annual Report of the Geological and Natural History Survey of 

 Canada," vol. ii, 1866, p. 49, J. 



