HOOD RIVER-WHITE SALMON RIVER AREA. 45 



occupy the hill and mountain slopes. The larger part of their area 

 is forested. The Rough stony land is a nonagricultural type. 



The glacial group includes the Rockford and Parkdale series. 

 The Rockford series is represented by two tyj^es — a stony clay loam, 

 includmg an eroded phase, and a clay. The loam is the only soil 

 of the Parkdale series in this area. 



The Hood sOt loam is the only representative of its series, and 

 consists of a water-laid sedimentary soil derived from fine glacial 

 material. It is one of the most important soils of the area. 



The alluvial soils comprise three series — the Wind River, Columbia , 

 and Winans — and the miscellaneous type, Riverwash. Of the Wind 

 River series, the stony loam, gravelly sandy loam, sandy loam, loam, 

 and fine sandy loam members are mapped. These soils are of con- 

 siderable importance. The Columbia series is represented only by 

 the Columbia fine sandy loam and the Winans series by the grav- 

 elly sandy loam and the loam, neither of which are extensive. 

 Riverwash is an unimportant type, consistuig of sand and gravel 

 deposits. 



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