Soils of the Far West. 133 



"Waldo loam. — Brown or grayish-brown silty loam, about 12 

 inches deep, resting on a subsoil of the same character, but of 

 lighter color and becoming heavier with depth. Bottom soil 

 along smaller streams. Derived from the erosion of limestone and 

 shale. It is well drained and not subject to overflow. The 

 average yield of wheat, from 12 to 15 bushels; of corn, 25 to 30 

 bushels per acre. Alfalfa produces from 4 to 5 tons per acre. In 

 general the soil is well adapted to agricultural purposes. 



12 3 4 



Soil (3) 3 23 58 15 



Subsoil (3) 2 17 62 19 



Acres. 

 Russell, Kans 12, 864 



SOILS OF THE FAR WEST. 



MARICOPA SERIES. 



This series is made up of colluvial soils of granitic origin. 



Maricopa stony loam. — Sandy loam 4 to 6 feet deep, containing 

 stones and bowlders, underlain by bed rock and masses of bowl- 

 ders. These often project above'the surface. Lower slopes of 

 the mountains. Has little agricultural value at present, being too 

 stony, and besides usually lying too high for irrigation. But for 

 this disadvantage of position in most areas and the scarcity of 

 water in others, some part of this soil might be used in fruit 



growing. 



Acres. 



Provo, Utah 33, 728 



Salt Lake, Utah n 16, 600 



Acres. 



Sevier Valley, Utah o 4, 210 



Weber County, Utah « 5, 700 



Maricopa gravelly loam. — Sandy loam 6 feet or more in depth, 

 containing gravel within 3 feet or less of the surface; always well 

 drained. Gravel usually from one-half inch to \\ inches in 

 diameter, generally increasing in amount in lower depths. High 

 bench lands and sloping valley floors in narrow valleys. When 

 too high for irrigation this soil is used to some extent for dry 

 farming to wheat. When irrigated it forms desirable land for 



a Mapped as Bingham stony loam, which name will not be used hereafter. 



