146 Soils of the Far YTtst. 



Laurel sandy loam. — An alluvial sandy loam 2 to 6 feet deep, 

 light-yellow to black in color, underlain by gravel and sand at 

 lower depths. Surface usually level, cut by sloughs and old river 

 channels, and swampy areas due to seepage from irrigating ditches. 

 Derived from deposits of the Yellowstone River. Except in parts 

 affected by alkali, is excellent for growing grain, vegetables, and 

 fruits. 



12 3 4 



Soil (4) 11 50 29 12 



Subsoil (4) 29 49 15 7 



Acres. 



Billings, Mont 8, 832 



Laramie, Wyo 29, 440 



SALT LAKE SERIES AND ASSOCIATED SOILS. 



The Salt Lake series occurs in old glacial lake beds, particularly 

 around Great Salt Lake and Utah Lake. It is probable that this 

 series is related to the Maricopa and Fresno series, as the material 

 is of the same granitic origin. 



Salt Lake sand. — Sand consisting of about 80 per cent of medium- 

 sized egg-shaped or spherical particles, largely calcareous. Occu- 

 pies level or dune areas. Near Great Salt Lake, Utah, soil is 

 derived from the breaking up of lime hardpan, the peculiar and 

 regular shape of the particles resulting from the wearing and 

 polishing action of wind and water. As found in the vicinity of 

 (ireat Salt Lake the soil is of no agricultural value because of its 



limited extent and its position. 



12 3 4 



Soil (2) 65 32 1 2 



Acres. 



Provo, Utah 1, 152 



Salt Lake, Utah 1,140 



Salt Lake sandy loam. — Sandy loam 2 feet deep, underlain by 



fine sand. Level i)lains, recent lake bottoms. Soil is poorly 



drained, contains an excess of alkali, and is bare of vegetation. 



For these reasons it has no present agricultural value. 



Acres. 

 Weber County, Utah 49. WO 



Jordan sandy loam. — Sandy loam 2 feet deep; loam to 4 feet; 

 sand to 5 iVet, underlain by clay. Level ])lains, generally well 



