THE UPPEK OR HERMAN BEACHES. 281 



it gradually rises to a height 10 to 25 and 50 feet above the beach. The 

 average height of its moderately undulating surface 6 miles to the south, at 

 Graceville, is nearly represented by the railroad at the depot there, 1,109 

 feet. Farther to the east, through this township, the crest of the beach 

 ranges from 1,057 to 1,062 feet. 



Fo]- the next 3 miles eastward, lying in the northwest part of Leon- 

 ardsville, the beach is less conspicuous than usual, but in sections 8, 5, and 

 4 of this township the shore-line is again distinctly mai'ked by a slight 

 teiTace in the till, descending northward in a moderately steep slope 5 to 

 10 feet, rather than by the usual accumulation of gravel. The top of this 

 terrace is at 1,056 to 1,057 feet. 



A few miles fai-ther north, in the southeast part of section 24, Doleys- 

 mount, the beach is a low gravel ridge, 20 rods wide and 5 feet high above 

 the adjoining sm-face, its crest being 1,060 to 1,061 feet above the sea. 



These determinations indicate that in Traverse County the surface of 

 Lake Agassiz during its maximum stage was very nearly 1,055 feet above 

 our present sea-level. 



In the northwest corner of Stevens County this upper or Herman 

 beach is well displayed in the northwest quarter of section 19, Eldorado, 

 having an elevation of about 1,063 feet. Tlu-ough section 18 it is 20 to 25 

 rods wide, with its crest at 1,063 to 1,066 feet, being a gently rounded 

 ridge of sand and gravel, containing pebbles up to 2 or 3 inches in diame- 

 ter. Its height is .7 to 10 feet above the land next west and 5 feet above 

 the depression next east. The surface on each side is till, slowly falling 

 westward and rising eastward. 



In the southeast part of section 7 in the same township the crest of 

 the beach is at 1,067 to 1,070 feet. Here and onward the next 2 miles, 

 through the northwest quarter of section 8, the southeast part of section 5, 

 and the western and northern part of section 4, this formation is finely 

 exhibited in a ridge of gravel and sand 20 to 30 rods wide, 15 feet or more 

 above its base westward, where lay the glacial Lake Agassiz, and 8 to 10 

 feet above the depression eastward, which divides it from the higher, mod- 

 erately undulating expanse of till beyond. In the east part of section 5 its 

 elevation is 1,065 feet, and through section 4, 1,065 to 1,072 feet. 



