LATEE MOKAINES OF LAKE MICHIGAN, SAGINAW, AND HUEON-EEIE LOBES. 241 



LYONS MORAINE. 



The next moraine, the Lyons, comes down to the north bank of the Grand River channel 

 about a mile northeast of Muir and begins again on the south side a mile east of Lyons. From 

 this point it runs southeast past Westphalia and Rile} 7 post offices and thence eastward to 

 Laingsburg. Near Westphalia and Riley it is very weak, scarcely traceable, but is stronger 

 farther east. Three or 4 miles east of Laingsburg it crosses Lookingglass River and runs east- 

 southeast to the southeast corner of Shiawassee County, where it appears to override the next 

 earlier moraine. It runs on east in broken form, passing Argentine and a little north of Fenton, 

 turns northeast through the extreme northwest corner of Oakland County, and passes a little 

 south of Atlas into northeast Lapeer County. This moraine seems slightly weaker than the 

 Portland moraine. 



FOWLER MORAINE. 



The Fowler, one of the finest moraines of the group, comes from the north to the Grand 

 River channel at Matherton about 12 miles northeast of Ionia. South of the channel it rims 

 southeast, passing a little west of Fowler. About 4 miles southeast of Fowler the moraine 

 crosses to the south side of Stony Creek and loses its strength, continuing for 5 or 6 miles as a 

 faint and broken feature. Beyond this, however, it is stronger, and though rather narrow 

 continues as a sharply defined ridge through T. 6 N., Rs. 1 W., 1 E., and 2 E. (Victor, Sciota, 

 and Bennington townships) . Its height is in jJaces 40 to 50 feet. Two miles east of Hartwells- 

 ville it turns southeast, crosses Shiawassee River, and follows its north side to Linden, whence 

 it runs northeast near Grand Blanc and east of Davison, turns more nearly north, and enters 

 Lapeer County about 2 miles northwest of Elba. Through Shiawassee and Genesee counties 

 this moraine is sharply defined. Between Byron and Grand Blanc it passes along the north 

 side of a jumbled, overlapped area, but is sharply separated from it by a well-defined valley, 

 which contains Shiawassee River and a number of lakes. 



ST. JOHNS MORAINE. 



The identity of the St. Johns moraine north of the Grand River channel is uncertain. At 

 St. Johns it is a narrow sharp ridge rising 30 to 40 feet above the plain to the north and about 

 20 feet above the plain to the south. From St. Johns it curves gradually northwest, diminishing 

 in strength for about 5 miles, when it ceases to be a ridge and for a mile or two is represented 

 by scattered knolls that finally die out. Its course indicates that it should reach the Grand 

 River channel 2 or 3 miles below Maple Rapids. But no distinct moraine comes to the chan- 

 nel in that vicinity, nor is one recognizable south of the channel for 6 or 7 miles. 



Eastward from St. Johns to within a mile of Shepardsville the moraine is rather faint and 

 broken, with low parallel ridges north of a rather weak main ridge. Farther east it is much stronger, 

 with an average width of a mile, and runs a little south of east across Shiawassee County, cross- 

 ing Shiawassee River at Newburg, and continuing in the same general direction to a point 3 

 miles southeast of Gaines in Genesee County, where it turns sharply northeast, passing a mile 

 south of Rankin. To Thread River south of Flint the front ridge is fairly strong. In T. 6 N\, 

 Rs. 5 and 6 E. (Gaines and Mundy townships), it is accompanied by later, weaker, fragmentary, 

 approximately parallel ridges that he 1 to 4 miles north of it. From Thread River to near Rich- 

 field it is very faint, being represented only by low, scattered knolls. This weakness is probably 

 due to a narrow lake which lay along the front of the ice southwest from Richfield at this stage 

 of retreat. Crossing Flint River from near Richfield the moraine grows much stronger and 

 higher toward the northeast, and then bends abruptly eastward and passes into Lapeer County. 



FLINT MORAINE, BOWLDERY BELT, AND OTISVILLE MORAINE. 



The village of Maple Rapids is barely within the head of the Grand River channel. One 

 mile east of Perrinton, which is 6 miles north of Maple Rapids, a sharply defined, narrow till ridge, 

 known as the Perrinton Ridge, runs north and south. Another stronger moraine runs south 

 34407°— 15 16 



