284 THE GLACIAL LAKE AGASSIZ. 



feet, being 7 to 10 feet above the depression at it^ east side and 20 feet 

 above the area westward, which Avas covered b}^ Lake Agassiz ; at Michael 

 J. Shortell's, section 9, same township, 1,073 feet; 1 mile farther north, 

 1,078 feet; and at A. J. Swift's, in the northwest qnarter of section 4, 1,076 

 feet. The beach at Mr. Swift's and for half a mile farther north is well 

 exhibited, and, as in many other places, is bordered on its east side by a 

 narrow strip of marsh. 



Beach in the northeast quarter of section 33, township 132, range 44, 



1.076 feet ; top of large aboriginal mound, situated on the beach here, 1,082 

 feet; land 30 rods west, 1,060 feet; lakelet 250 feet in diameter, about an 

 eighth of a mile northeast from the large mound, 1,051 feet. 



Red River of the North, near the northeast comer of section 33, town- 

 ship 132, range 44, 1,014 feet ; on the line between this township and Buse, 

 1,041 feet ; and at Dayton bridge, in the southwest quarter of section 20, 

 Buse, 1,064 feet, being 8 feet below the bridge. S. A. Austin's house 

 foundation in the southwest quarter of section 29, Buse, 1,147 feet. Old 

 grade for railroad at Dayton bridge, about 1,102 feet. 



No noticeable delta was brought into Lake Agassiz by the Red River. 



FROM THE RED RIVER NORTH TO MUSKODA. 



(PLATES XXIV AND XXV.) 



Crest of beach near the south side of section 21, township 132, range 

 44, 1,077 feet; in this section 21, an eighth of a mile north of the road 

 from Fergus Falls to Breckenridge, 1,079 feet; and for the next mile north, 



1.077 to 1,080 feet. This is a typical beach ridge, gently rounded, com- 

 posed of sand and gravel, containing pebbles up to 3 inches in diameter; 

 its width is 30 to 40 rods, and its height above the very flat area on its west 

 side, which was covered by Lake Agassiz (usually somewhat marsh}^ next 

 to the beach), is about 15 feet. On the east there is first a depression of 4 

 to 6 feet, succeeded within a fourth of a mile eastward by a gentle ascent, 

 which rises 5 to 10 or 15 feet above the beach. The material on each side 

 of the beach is till, slightly modified by the lake on the west. It is all" 

 fertile prairie, beautifully green, or in many places yellow or pui'ple with 

 flowers during July and August, the months in which this survey was 



