350 THE ILLINOIS GLACIAL LOBE. 



Passing- eastward over this belt there is an ascent, gradual at first, over 

 a sandy tract in Columbia Township, then over an undulatory till ridge in 

 Bloomingdale Township, which changes to a plain in the central part of the 

 township; then in the eastern part of this township a rapid ascent is made 

 to the high portion of the moraine which forms the eastern border of the 

 Lake Michigan drift. This border is at Gobies, on the line of the Kalama- 

 zoo and South Haven Division of the Michigan Central Railroad, and lies 

 near the line between Bloomingdale and Pine Grove townships throughout 

 their whole length. The following elevations of stations along the railroad 

 give a fair idea of the rise of the moraine toward the east from Grand 

 Junction to Gobies: 



Elevations of stations along the Kalamazoo and South Haven Division of the Michigan 



Central Railroad. 



Feet above tide. 



Grand Junction 678 



Columbia 682 



Berlamont 700 



Bloomingdale 731 



Gobies 803 



At least 60 feet of the rise between Bloomingdale and Gobies is made 

 within 1£ miles of the latter town. There is scarcely any descent to the 

 border of the overwash plain or apron east of Gobies, but this plain 

 descends 20 feet or more in a mile toward the east to the border of the 

 Saginaw moraine near Pine Grove Mills. This may not be true except 

 along the railroad, but since this passes through a wide part of the over- 

 wash plain the fact is significant. 



In T. 2 S. the morainic ridge which is so prominent at Gobies grows 

 feebler for 3 miles or more along the line between Almena and Waverly 

 townships, as it approaches Pawpaw River, rising scarcely 50 feet above 

 this stream and still less above Brandywine Creek, which lies along its 

 western border. The undulations are less sharp than in T. 1 S. On the 

 south side of Pawpaw River the outer border of the moraine takes a nearly 

 east to west course for 5 or 6 miles. Its prominent portion lies mainly in 

 T. 3 S., barely reaching into Waverly Township. There is a gap 2 or 3 

 miles long just north of the village of Pawpaw where no moraine is devel- 

 oped, but the swamps which follow Pawpaw River are bordered on the east 

 by the overwash apron of a moraine of the Saginaw series. West of 

 Pawpaw the moraine assumes a strength of development even greater than 



