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• <br />SOILS DESCRIPTION <br />ADAMS COUNTY, COLORADO <br />SANDY ALLUVIAL LAND (Sm) consists of an unstable accumulation of <br />~ gravelly and sandy alluvium. It is in and adjacent to beds of <br />intermittent streams throughout the eastern three-fourths of Adams <br />County. During periods of heavy rain, the streambeds are subject to <br />flooding, and channels are relocated and sediment is shifted and <br />redeposited at slightly different locations. During dry spells, this <br />land type is extremely droughty. <br />~ Sandy alluvial land consists of material that was transported by <br />water from the sand and gravel beds in or adjacent to the area. It is <br />stratified because of periodic flooding. Thin lenses or small pockets <br />of silt, clay, and sand are also mixed with the gravel. <br />This land type differs from Wet alluvial land primarily in that <br />it is coarser textured throughout and is not affected by a water <br />~ table. <br />Sandy alluvial land is either barren or has only a sparse cover <br />of weeds. It is used for grazing along with' the better rangeland <br />adjacent to it. Capability unit VIIw-l, nonirrigated; not placed in a <br />range site; tree planting suitability group 4. <br />i~ <br /> <br /> <br /> <br />~~ <br />SOIL SURVEY OF ADAMS CO~JNTY, COLORADO; USDA, Soi! Conservation <br />Service in cooperation with Colorado ASricultural Esperiment Station, <br />October /974. <br />t <br />