328 THE GLACIAL LAKE AGASSIZ. 



fine gravel, 22 feet; and darker elaj^ey quicksand, 3 feet, with Avater. This 

 is on the Avest part, nearly at the crest, of an unusually high beach of 

 this glacial lake, similar in elevation with the Milnor beach farther south. 

 Including its slopes, it has a width of 60 rods, the nearly flat crest being 

 40 rods across and in elevation 1,142 to 1,147 feet. The depression on the 

 w^est falls about 5 feet. In the north part of section 2 this sand and gravel 

 deposit has an irregular contour, not lying in a continuous ridge ; its highest 

 poi-tions vary from 1,145 to 1,152 feet. Southward from section 2 it is not 

 continuous, but is interrupted by wide depressions where the surface is till. 

 Beach gravel and sand appear, however, in some amount at Mr. Thomas 

 Ward's, in the southwest corner of section 11, township 145, range 55; also 

 in the southwest part of section 23, nearly 2 miles farther south. Within 1 

 to 3 miles west from these sections an area of undulating and roUino' till 

 rises to 1,200 and 1,250 feet. 



Near the middle of the north half of section 23, township 146, range 

 55, the elevation of this beach is 1,142 to 1,144 feet. It is a ridge of gravel 

 and sand, extending a quarter of a mile from southeast to northwest, with 

 crest 15 feet above the surface on each side. Toward the east it descends 

 in a long slope, but more steeply westward. In section 14 this shore-line 

 curves westerly, the crests of its somewhat irregular beach deposits being 

 about 1,135 feet, with a descent of 10 to 15 feet in 25 rods east. Through 

 section 11 they range from 1,135 to 1,147 feet, being highest in the southeast 

 quarter of the section, where the descent eastward is 20 feet or more. These 

 beach deposits are sand and gravel, with pebbles up to 1^ or 2 inches in 

 diameter, massed in flattened hillocks or swells, mostly ridged lengthwise 

 with the shore and occasionally inclosing hollows without outlet. The for- 

 mation has a width of a quarter of a mile or more in its northward course 

 through the west part of the east half of section 11. An undulating sur- 

 face of till rises slowly to the west, while on the east a very smooth expanse 

 of till sinks slowly toward the Red River. 



Herman beach ridge, 30 rods wide, in or near the east edge of the 

 southeast quarter of section 2, township 14G, range 55, 1,125 feet. Irreg- 

 ular accumulations of the higher beacli a quarter of a. mile farther west rise 

 approximately to 1,140 feet. These upper deposits and those described in 



