110 Glacial and Loessial Soils. 



1 2 



Soil (6) 50 27 



Subsoil (6) 55 27 



Acres. 



Ailegan County, Mich « 14, 160 



Marshall, Minn 1,216 



Pontiac, Mich 6, 912 



Marshall gravelly loam. — The soil consists of about 12 inches of 

 heav^y black sandy loam underlain by 2 feet of coarse gravel usu- 

 ally resting on a coarse sand extending to a depth of 6 feet or 

 more. The gravel is limestone, crystalline rock fragments, or 

 shale. Glacial soil, usually representing beaches along old glacial 

 lakes. This type usually occurs in narrow bands. Except in very 

 wet seasons, the crop yields on this soil are very light. 



12 3 4 



SoiW7) 23 28 32 17 



Subsoil (8) 32 26 23 16 



Acres. 



Fargo, N. Dak 2, 688 



Grand Forks, X. Dak ?'51, 136 



Marshall, Minn 960 



Marshall sand. — Dark-brown to black sand, coarse to medium in 

 texture, with an average depth of 10 to 12 inches, with a coarse to 

 medium sandy subsoil, lighter colored than the soil. The soil 

 possesses quite a marked loamy texture, particularly in depressions, 

 owing in part to the admixture of fine silt and clay particles, but 

 chiefly because of the presence of a considerable proportion of 

 organic matter. Occupies narrow ridges, and is characterized by 

 a somewhat hummocky topography. Glacial origin, although 

 exact manner of depostion is not clear. Crop yields are uncertain, 

 but are larger in wet seasons than in dry. Well adapted to vege- 

 tables and melons where moisture conditions are favorable or can 

 be controlled. 



1 2 3 4 



Soil (1) 38 41 11 10 



Subsoil (1) 36 42 13 9 



Acres. 

 Cerro Gordo, Iowa 1, 024 



"Mapped as Kalamazoo gravelly loam, wliich name will not be used 

 hereafter. 

 b Mapped as Fargo gravelly loam, which name will not hereafter be used. 



