46 Loose Incolierent Sands (lud Rod' (Jnfvi'np. 



Riverwash. — Coarse sand, gravel, and bowlders orenerally in long, 

 narrow areas, but occasionaliy spread out in fan-shaped areas. 

 Subject to overflow in times of flood, occupying bottoms of flood 

 channels of rivers. Liable to be encountered, particularly in the 

 far West, Avhere torrential rains occur and rivers vary greatly in 

 volume and quickly subside, giving little chance for fine material 

 to be deposited. No agricultural value. 



Acres. Acres. 



Blackfoot, Idaho 1,792 San Gabriel, Cal 16,230 



Fresno, Cal 480 San Jose, Cal 128 



.TamestOAvn, X. Dak 17,408 ! Sevier Valley, Utali "3,200 



Laramie, Wyo 1, 792 Solomonsville, Ariz 256 



Los Angeles, Cal 1, 664 | Ventura, Cal 13, 610 



Lower Arkansas Valley, Colo . . 12, 800 Yakima, Wash 3. 5^0 



Lower Salinas Valley, Colo 10, 760 I 



Madeland. — Areas are occasionally encountered where soils have 



been filled in over considerable tracts in mining operations and in 



the improvement of harbors. Such areas do not fit into any soil 



group, and yet it is advisable to recognize them on the soil map. 



They are of no present agricultural value. 



Acres. 

 Syraeu.se, N. Y 576 



Rock outcrop. — Areas in tlie main either rock outcrop or so stony 

 as to be entirely unfit for cultivation and incapable of being put 

 into condition for cultivation. In this respect it differs from stony 

 areas, which can be improved to some extent for agricultural 

 I)urposes. Rock-outcrop areas, h(^wever, often support timber 



and afford some grazing. 



Acres. Acres. 



Ashcville, N. C 1,8.56 



Maker City, Oreg 192 



Bedford, Va 17, 140 



(^ampobello, S. C 1,997 



Mount Mitchell, N. C 5, 184 



Parsons, Kans 2, 36s 



Pikeville. Tenn 14, 016 



Rough, stony land. — Under this head have been classed areas so 

 stony and broken as to be of little agricuUural value, but yet not 

 so barren as Rock outcrop areas. In Johnson County, the fii'st 

 area where this classification has been followed, the areas are 



" I'art mapped as Klsinore sand in Sevier Valley, hut tliis name will not 

 ajjain he used. 



