448 THE GLACIAL LAKE AGASSIZ. 



In Nortli Dakota the lowest Blaucliard slioi-e runs northwestward from 

 the Red River for its first 35 miles, passing close west of Davenport and 

 close east of Everest and Casselton, but it is not easily traceable across this 

 area of lacustrine silt associated with the Sheyenne delta. Next it extends 

 north about 40 miles, running a few miles east of Amenia, Arthiu', and 

 Hunter, and about 1^ miles east of Greenfield and Blanchard. The height 

 of this shore in the distance of 75 miles from the Red River to Blanchard, 

 ascends from 925 to 935 feet, approximately, above the sea-level. It crosses 

 the Goose River about 8 miles north of Blanchard, and thence runs several 

 miles northeastward, beyond which it curves to the north, passing about 

 3 miles west of Cummings and 1 mile west of Buxton, where it is marked 

 by a prominent beach ridge, with crest at 945 feet, very nearly. This 

 gravel and sand ridge runs thence at least 15 miles northwestward. • Near 

 the southwest corner of section 7, Michigan, about 11 miles northwest from 

 Buxton, its crest has an elevation of 942 to 945 feet. It there lies nearly 4 

 miles east of the principal McCauleyville beach, but within a few miles 

 farther northwest the distance between them is diminished to less than 2 

 miles. Thence they continue close together and nearly parallel through 

 their whole extent of about 80 miles northward in North Dakota; but this 

 part of the Blanchard shore has not been followed with leveling. 



The shores formed during the middle and upper Blanchard stages of 

 Lake Agassiz have not been traced in North Dakota. Their elevations 

 determined in Minnesota and Manitoba, however, indicate that Greenfield 

 and Blanchard are situated on the middle shore or very near it. A single 

 observation of the upper shore, which passes about 2 miles west of Blanch- 

 ard, was obtained 7 miles farther north. It there is marked by a low 

 escarpment of till, which descends 3 or 4 feet from west to east, between 

 965 and 960 feet, along a south-to-north line that is crossed by the railway 

 about a mile nortli of Murray station. 



On the international boundary the Blanchard shore-lines enter Mani- 

 toba in the west part of township 1, range 4, passing near Kronsfeld, in 

 section 7 of this township, and extending north-northwest within about a 

 mile east of Morden; but they are not marked along this distance by distinct 

 beach deposits or lines of erosion. The lowest of these shore-lines crosses 



