BLANCH ARD BEACHES IN MINNESOTA. 447 



From Glyuclou to the vicinity of Crookstou the Blanchard shore is 

 mapped approximately in accordance Avith the known elevations and slope 

 of the land, but its beaches have not been examined. 



About 5 miles northeast of Crookston, in the southern edge of section 

 3 and of the southwest quarter of section 2 in this townshiji, a portion of 

 the Hillsboro shore-line extending a mile from east to west bears a well- 

 defined, rather wide beach ridge, which rises 5 to 15 feet above the adjoining 

 sm-face of till, with crest mostly 936 to 940 feet above the sea. S. M. 

 McKee's house is built on an exceptionally high part of this beach, at the 

 elevation of 944 feet, the thickness of its sand and gravel there being 20 feet. 



One and a half miles northeast from this beach deposit the lowest 

 Blanchard shore in Parnell, the next township northward, bears a scarcely 

 higher beach ridge of gravel and sand, which rises 5 to 10 feet above the 

 adjacent till and extends northwestward across section 35, having an 

 elevation at its crest of 935 to 940 feet. Thence the Blanchard shore runs 

 due north or a few degrees west of north through Parnell and the next two 

 townships. It is marked along the greater part of this distance of 18 miles 

 by a definite beach ridge which varies in height from 938 to 946 feet. A 

 half mile to a quarter of a mile west from this beach a lower and smaller 

 gravel and sand ridge on the northward continuation of the Hillsboro shore, 

 with crest at 930 to 932 feet, was observed along a distance of about 4 

 miles, passing nearly through the center of section 4, Parnell, and sections 

 33, 28, and 21, Belgium. 



The profile of the Duluth and Manitoba Railroad on the south line of 

 sections 35 and 34, Belgium, shows beach ridges of tlu-ee Blanchard stages, 

 with their crests at 962 feet, 954 feet, and 946 feet, in their order fi-om east 

 to west. Again, about 8 miles farther north two or three small beach 

 ridges of gravel and sand, lying on the sm'face of till and separated by 

 successive intervals of about a mile, were noted between the lower Blanch- 

 ard and McCauleyville beaches. The Blanchard shore-lines on the east 

 side of Lake Agassiz have not been traced farther northward, but they are 

 known to lie close west of the McCauleyville shore in its north-northwest- 

 ward course across Marshall and Kittson counties, Minn., to the international 

 boundary. 



