158 Soiltt of tJte Far West. 



1 i 3 4 



Soil (8) .- 1 44 42 11 



Subsoil (1) 5 50 33 11 



Acres. 



Imperial, Cal 30, 784 



Salt River Valley, Ariz 18, 578 



Acres. 



Solomonsville, Ariz ^. 9, 600 



Yuma, Ariz 17, 038 



Santiago loam. — Red loam, 3 feet deep; sandy loam to 4 feet, under- 

 lain by gravelly sandy loam. Harsh, compact soil washed from 

 foothills by the streams; occurring along margin of coastal plain 

 near foothills in southern California. Considered unproductive 

 soil, and at present little used for agricultural purposes. 



1 2 



Soil (1) 4 34 



Subsoil (1) 4 30 



Acres. 

 Santa Ana, Cal 1, 830 



Glenwood loam. — Loam 4 feet deep, underlain by clay. Level 

 valley floor. Soil contains considerable alkali, and drainage is 

 often poor, but when drained and free from alkali it is excellent 

 for general farming purposes. 



1 2 



Soil (2) 3 17 



Subsoil (3) 5 20 



Acres. 

 Sevier Valley, Utah 12, 100 



Boise loam. — Red or yellow loam from 6 inches to several feet in 

 depth, underlain with alternating strata of sandy loam and s:md, 

 the latter often being cemented by calcium carbonate into a hard- 

 pan. Soil particles in the upper stratum of virgin soil also usually 

 cemented together, but not into a compact mass. Surface is usually 

 covered with a coating of sandy loam, varying in depth and hav- 

 ing the texture of the Boise sandy loam. Occurs on mesa plains 

 and is derived from lake sediments. Often alkaline. When sul)- 

 soil is broken up, is good for fruit, grain, and alfalfa. 



1 2 



Soil (1) 5 31 



Subsoil (3) 11 32 



Acres. 

 Boise, Idaho 61, 960 



