THE UPPER OR HERMAN BEACHES. 283 



Beach in section 31, Elbow Lake, not so conspicuous as usual, 1,066 

 feet; in the southwest quarter of section 18, same township, at the house 

 of Henry Olson, a gracefully rounded low ridge, as elsewhere, composed of 

 gravel and sand, including pebbles up to 3 inches in diameter, 1,065 to 

 1,066 feet; at ]\Irs. John S. Ireland's, in the northwest quarter of the same 

 section 18, 1,070 feet; at Dr. J. M. Tucker's, in the northeast quarter of 

 section 2, North Ottawa, 1,071 feet; about a mile north of the last, near 

 the north side of section 35, Lawrence, 1,075 feet; and about a mile 

 farther north, also 1,075 feet. Through nearly the whole of this distance 

 it is a typical beach ridge of sand and gravel. 



Crest of beach about 30 rods west of M. L. Adams's house, in the 

 northeast quarter of section 26, Lawrence, 1,075 feet, being 4 feet above 

 the land adjoining this ridge on the east and about 10 feet above the flat 

 land near on the west; in section 23, same township, 1,076 feet; and near 

 the south side of section 10, same township, 1,069 to 1,074 feet. 



Extensive sloughs or marshes occur in section 36 and in sections 25 

 and 24, Lawrence, each being about a mile long, lying on the east side of 

 the beach ridge at Dr. Tucker's and reaching 2 J miles northward ; the 

 elevation of these above sea-level is about 1,060 feet. 



In the north part of section 10 and the south part of section 3, Law- 

 rence, this shore-line of Lake Agassiz is not marked as usual by a gravel 

 ridge, but by a somewhat abrupt ascent or terrace in the di'ift sheet of till, 

 the elevation of the top of which, composed partly of gravel, is 1,085 to 

 1,079 feet; base of this ten-ace and land westward, consisting of till, 

 slightly modified on the area of Lake Agassiz, 1,060 to 1,050 feet. This 

 escarpment, the eroded shore-line of the lake, passes about 40 rods west of 

 N. S. Denton's house, at the north side of section 10. 



Beach in section 34, Western, the most southwest township of Otter- 

 tail County, near John F. Wentworth's, 1,070 to 1,075 feet; surface at 

 Mr. Wentworth's barn, 1,072 feet. Beach 25 rods east of Albert Cope- 

 land's house, in the southwest quarter of section 28, Western, 1,070 to 

 1,066 feet; where it is crossed by the old road from Fergus Falls to Camp- 

 bell, near the northwest corner of this section 28, 1,072 feet ; tlu-ough the 

 •next 2 miles north, finely developed, with nearly constant height, 1,072 



