158 THE GLACIAL LAKE AGASSIZ. 



ridges border the ^linnewaukaii branch of the X(irthern Paeiiic Raih-oad 

 aloug a distance of 3 miles. Next to the north there is a width of nearly 

 2 miles of moderately undulating, smooth till, in the central part of which 

 is the disused Fort Totten station. Westward this smooth tract extends 

 about 2 miles, dividing the Dovre moraine on the south from the compound 

 Fergus Falls and Leaf Hills moraines on the north ; but beyond this it is 

 interrupted by morainic hills surrounding Long Lake, where the two belts 

 seem to be once more united. The further course of the Dovre moraine 

 and its relationship with these later moraines upon the very scantily settled 

 country extending from Long Lake and Minnewaukan westward have not 

 been definitely traced and are laid down on the map (PL XVII) only 

 in a provisional manner. It is probable that the Do^^■e moraine is well 

 developed 5 to 10 miles south of Rugby Junction, where the surface bears 

 numerous small lakes, and that it is also represented on the southeast part 

 of the Lake Souris area by swells about 60 feet above the general level, 

 seen 1 to 3 miles southeast of Berwick. The continuation of the ice border 

 thence northwest may have been approximately coincident with the sand 

 hills lyiug on both sides of the Souris or Mouse River, in townships 157 

 and 158, ranges 75 and 76. Little Medicine Lodge, so named from its 

 being formerly the scene of dances of the Indians, Avith incantations of 

 their medicine men, is one of these dunes without vegetation, which rises 

 about 75 feet in height on the west bank of the Souris River, 5 miles north 

 of Towner. 



EIGHTH OR FERGU.S FALLS MORAISE. 



The eighth and ninth or Fergus Falls and Leaf Hills moraines unite 

 in the south part of Ottertail County, Minn., to form the Leaf Hills, 100 

 to 350 feet high, which reach from Fergus Falls in a semicircle 50 miles 

 southeast, east, and northeast, to the Leaf Lakes. These are the most con- 

 spicuous morainic hills of this State ; and on account of their prominence 

 above all the adjoining country they have been commonly called the Leaf 

 Mountains. Eastward from these hills the Fergus Falls morame seems 

 to be merged with the Dovre moi'aiue tln-ough Miltona and Spruce Hill, 

 in the northeast part of Douglas County, and through southwestern and 

 southern Todd County. Next it runs northward in a well-marked belt 



