GLACIAL LAKE LUNDY AND TRANSITION TO LAKE ALGONQUIN. 401 



Macomb County. — From Royal Oak the Grassrnere beach keeps closely parallel with the 

 Wayne to a point 2 miles northeast of Big Beaver, whence it runs directly northeast to Utica. 

 It is sandy and weak but is stronger and somewhat gravelly at Utica, where it runs through 

 the south end of the village half a mile south of the Wayne beach. Northeast of Utica it passes 

 into an extensive sandy area, largely of dunes, through which it is not definitely traceable. 

 It probably follows the heavier line of the deposit about northeast for 4 or 5 miles. In Macomb 

 Township it appears to be lost in a wide sandy area. Possibly it runs into the south edge of 

 Ray Township, but it was not certainly identified for 6 or 7 miles toward the east. 



At New Haven it follows the crest of the Mount Clemens moraine as a sandy beach ridge, 

 which is well developed at the west edge of the village. It runs about 2 miles northeast and 

 4 miles southwest from this place. Three miles east of New Haven it appears as a north-south 

 gravel ridge about 2 miles long, and a mile farther south as a fragment on the back of the Emmett 

 moraine. As a rather light but finely formed gravel ridge, it runs 2 miles east from the center 

 of sec. 30, Casco Township, and passes a little south of the corner at Casco, curving around to 

 the Belle River at Adair, where it expands to more than a mile in width. 



From the Grosse Pointe quadrangle the Lundy beach continues toward Mount Clemens, and 

 for several miles north and south of this place it rests on or very near to the crest of the Mount 

 Clemens moraine as a rather faint fragmentary gravel ridge. Several such gravel deposits 

 occur at and north of the railroad station in Mount Clemens. " 



The Mount Clemens moraine forms the eastern barrier of a vri.de, flat valley, which is drained 

 by the several branches of Clinton River, and which, at the time of the Lundy beach, was a 

 bay of considerable extent with a narrow shallow outlet eastward at Mount Clemens. The 

 southwestern part of this bay lies in the Rochester quadrangle. No definite beach was found 

 at the Lundy level, but the southern part of the area, south and east from Warren, is sandy 

 and often suggests a beach. On the clay plain north of Warren no certain evidence of the 

 beach was found. 



Some small gravelly ridges of the Lundy run from Mount Clemens northward past Chester- 

 field and, passing a mile or two south and east of New Haven, turn eastward across the wide 

 clay flats north of Lake St. Clair. The beach is not traceable continuously through this region. 

 Some light gravel ridges belonging to it lie on the Emmett moraine for a mile or two northwest 

 of New Baltimore. 



St. Clair County. — East of New Baltimore the Lundy beach appears to run as a faint 

 gravelly belt across the south edge of Casco Township to the southwest corner of China Town- 

 ship. From here it runs as a distinct sand belt northeast to Belle River and thence north to 

 Pine River west of St. Clair. 



From the sandy delta at Adair the Grassrnere beach runs north, passing a mile west of 

 Smith Creek and just east of Burns to Pine River. Three miles north of Adah - it becomes very 

 sandy for 2 miles and widens to nearly a mile. Thence nearly to Burns it is gravelly, but from 

 Burns to Pine River it is again fine sand. 



Half a mile east of Kimball two slender gravel ridges appear on the east side of Pine River 

 and run south about 2 miles before being lost in dunes. The higher dune ridge west and south- 

 west of Port Huron appears to belong mainly to the Wayne beach and the lower one to the 

 Grassrnere beach. 



About 3 miles west of St. Clair River at Port Huron a belt of dunes runs south to the bank 

 of the river 5 miles north of St. Clair. This dune ridge does not much resemble a shore fine, 

 but it seems to be about at the level of the Lundy beach. The level of the beach runs north 

 across the upper edge of the great sandy delta of Black River northwest of Port Huron. 



Sanilac County. — North of Black River both the Grassrnere and Lundy beaches are very 

 faint gravelly belts, but about 5 miles from the river both of them become fairly strong, con- 

 tinuous ridges, generally gravelly, running northward through Sanilac County. The beaches 

 are sandy in some small localities farther north on the "thumb," but little of the sand is wind 

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