720 GLACIAL FORMATIONS OF ERIE AND OHIO BASINS. 



the way a well-defined gravel ridge. East from the rivei the beach con- 

 tinues in a course north of east through York Township, traversing sections 

 18, 17, 16, 15, 14, 11, 12, and 1, and presenting throughout much of its 

 course a well-defined gravel ridge 6 to 10 feet high and 50 to 100 yards 

 or more in width. 



In section 12, York Township, the beach turns northward and enters 

 Ypsilanti Township near its southwest corner. For about 3 miles it presents 

 a well-defined sandy ridge, passing in a direct course slightly east of north 

 to the north part of section 20, where it terminates abruptly. But another 

 ridge sets in outside this ridge and pursues a winding course northward 

 through the western part of Ypsilanti Township, passing near the western 

 limits of the city of Ypsilanti and coming to Huron River in the northwest 

 part of section 5. About a mile east of this ridge, and at a slightly lower 

 level, there are faint ridges of sand running through the southwest part of the 

 city and along or near Summit Street nearly to the State Normal grounds 

 in the northwest part. On the north side of Huron River there is a promi-- 

 nent sand bar setting in at Highland Cemetery nearly opposite the ridge 

 at the Normal grounds. This bar trends east of north about a mile and 

 connects with a beach leading in from the west which forms the contin- 

 uation of the western or main ridge found south of the river. This beach 

 can be traced westward across sections 33 and 32, Superior Township, 

 nearly to the Huron River, and to within less than a mile of the end of the 

 beach south of the river. The Huron River does not present a definite 

 terrace at the level of this beach. This is due perhaps to the fact that the 

 stream for a considerable period had its discharge southward from Ann 

 Arbor to Saline River. Possibly the diversion to the present course did 

 not occur until after Lake Maumee began to form this beach. 



From the point where the bar connects with the beach in the west part 

 of section 33, the beach takes a north-northeast course into Wayne County, 

 passing through sections 34, 27, 22, 23, 14, and 12, Superior Township, and 

 entering Wayne County in the northwest part of section 7, Canton Township. 

 It consists usually of a low, gravelly ridge 3 to 6 feet in height, but there 

 are frequent gaps where it is poorly developed or has the form of a cut bank. 

 The beach presents simply a cut bank for several miles after crossing 

 into Wayne Comity, but from section 28, Plymouth Township, northeastward 

 to West Rouge River, near Waterford, it usually consists of a low, gravelly 



