Yakima Series. 141 



Acres, i Acres. 



Baker City, Oreg 10, 816 Walla Walla, Wash 64, 896 



Lewiston. Idaho 6, 20s Yakima, Wash 149, 580 



Yakima fine sandy loam. — The surface soil in a mellow, friable, 

 brown sandy loam from 10 to 16 inches deep. The subsoil con- 

 sists of a light-brown silty loam, heavier and more plastic than the 

 surface soil. The type is easily tilled and well drained. Gener- 

 ally occupies rolling hills. Wheat is the principal crop. 



1 i 



Soil (11) 2 16 



Subsoil (7) 1 12 



Acres. 



Lewiston. Idaho 172, 992 



Walla Walla, Wash 26, 688 



Yakima loam. — Loamy soil 2 to 6 feet in depth, sometimes over- 

 lying sandy loam or sand, but often resting directly on coarse gravel. 

 Not well drained. Usually free from alkali. Alluvial soil. Hay 

 and pasture land. 



1 



Soil (7) 4 



Subsoil (6) 8 



Acres. 



Baker City, Oreg 29,760 



Blackford. Idaho 241, 216 



Acres. 



Boise, Idaho « 1, 500 



Walla Walla, Wash 3, 392 



Yakima silt loan. — A grayish-blue, brown, or black loam, rang- 

 ing from a tine sandy to a heavy silty texture, and about 10 inches 

 deep, underlain by a dark-gray or bluish loam with adobe tenden- 

 cies. This is in turn underlain by a lighter material, occasionally 

 of a yellowish cast, containing some sand. Occupies valleys and 

 is generally (piite level. Formed by weathering of sediment 

 washed from hills of Yakima fine sandy loam. AVheat forms the 

 principal crop. Timothy, barley, oats, and alfalfa are also grown. 



1 2 



Soil (3) 4 12 



Subsoil (3) 3 19 



Acres. 

 Lewiston, Idaho 15, 936 



« Mapped as Caldwell loam, which name will not be used hereafter. 



