286 The American Geologist. November, 1894 
At several of the places mentioned the sliore lines are in 
long valleys between the hills, and must have been many miles 
from any large open water. This is the case especially at 
Huntsville, Burk's Falls, Sundriclge, and South River. On 
this account it might be thought that these evidences of sub- 
mergence were not produced by the wider waters which filled 
the basin of the upper lakes, but were due to lakes of the gla- 
cial recession, or to some other local cause. But I am quite 
certain that such is not the case. These valleys are wide and 
have open connection with the broader lake basin outside, and 
the plane of the shore lines in them appears to be the same as 
that of the greater outer beaches. These vallej'S open to the 
southwest and west, away from the probable direction of ice 
retreat. The one which passes Sundridge and South River 
opens both to the southwest and north. The magnitude of the 
phenomena also comports well with the strength and charac- 
ter of the outer lines. At the time of the great submergence 
this coast was somewhat like the present coast of Georgian 
ba} r , except that both channels and islands were on a much 
larger scale. The highest part of the highlands lies 30 or 40 
miles to the east of Burk's F'alls, and is comprised in the Al- 
gonquin Park lately projected by the Canadian government.* 
From all that I have been able to gather concerning the char- 
acter of that region it seems probable that nearly the whole 
tract was intersected by channels which cut it up into islands. 
The highest lakes reported in that region have an altitude of 
about 1,405 feet above the sea. 
In the Simcoe region and to the west Dr. Spencer found a 
marked rise of the Algonquin beach toward the east. Our 
observations in the same region were less extended and less 
precise than his, but so far as they go they show the same re- 
sult. For instance, the locality near Lorneville is about 30 
miles east from Barrie and only two or three miles north. But 
the beach at the former place is about 35 feet higher than at 
the latter, showing an eastward rise of nearly one foot per 
mile. Orillia is about 13 miles east and the same distance 
north from Barrie and the beach is about 50 feet higher, show- 
ing a rise of more than three and a half feet per mile to the 
*Repor1 of the Commission on Foresl Preservation and National 
Parks, etc., L893. 
