390 THE ILLINOIS GLACIAL LOBE. 



From East Saugatuck northeastward the sui*face is billowy without well- 

 defined basins, and this topography is maintained for some distance beyond 

 the point of connection with the Valparaiso morainic system, as far as the 

 examinations have been carried. 



This ridge, like the outer ridge, has had considerable influence on the 

 course of drainage. The north branch of Black River follows nearly its 

 outer border from Hutchinson Lake southward to the vicinity of South 

 Haven, while the south branch follows nearly the outer border from Covert 

 northward to the same point, and the united streams there pass westward 

 through a gap in the ridge to the lake. Pawpaw River follows the outer 

 border of the ridge for about 8 miles in its lower course. Hickory Creek 

 flows northward along- its outer border for about 6 miles before entering the 

 St. Joseph River. North Galien River follows the outer border for about 

 8 miles below the village of New Troy, where it is joined by South Galien, 

 and the united stream passes westward through a gap in the ridge. 



ZEELAND RIDGE. 



During* the summer of 1897 the writer discovered a till ridge in north- 

 western Allegan and southern Ottawa counties, Michigan, which lies west 

 of Covert Ridge and which extends no farther south than the vicinity of 

 the mouth of the Kalamazoo River, its further continuation having been 

 cut away by Lake Michigan. This ridge is well developed immediately 

 northeast of the village of Zeeland and it seems appropriate to apply to it 

 the name Zeeland. The portion south of Holland, however, has been 

 known by the residents as "May Hill." The writer has examined it only 

 from the meridian of Holland northeastward to Grand River, north of 

 Hudsonville, Ottawa County, a distance of about 20 miles. 



The ridge stands 100 to 120 feet above Lake Michigan, where best 

 developed, and has a width of scarcely 1 mile. It is interrupted by occa- 

 sional gaps, the most notable being the one through which Black River 

 passes, south of Zeeland, which is about 1£ miles in width. 1 From a point 

 noilh of Vriesland northeastward to Grand River it lies along the west 

 border of a large abandoned valley, and appears to have been partially 



1 This Black River should be distinguished from a stream of the same name entering Lake 

 Michigan at South Haven. 



