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Chroma: 6 or 8 dry Texture: Fine sand, loamy fine sand, fine sandy loam, averaging <br />finer than loamy fine <br />sand <br />COMPETING SERIES: There are no competing series. <br />GEOGRAPHIC SETTING: Wahweap soils are on rolling plateaus. These soils formed in <br />eolian sands and sandstone alluvium. Slopes range from 0 to 16 percent. Elevations <br />range from 3600 to 4400 feet. Mean annual precipitation is 6 to 10 inches. Mean annual <br />air temperature is 55 to 57 degrees F. Frost-free period is 160 to 180 days. <br />GEOGRAPHICALLY ASSOCIATED SOILS: These are the Pa in and Sheppard <br />series. Pagina soils are moderately deep. Sheppard soils are very deep. <br />DRAINAGE AND PERMEABILITY: Somewhat excessively drained; slow runoff; <br />moderately rapid permeability. <br />USE AND VEGETATION: Used mainly for livestock grazing. Vegetation is mainly <br />blackbrush, Mormon-tea, broom snakeweed, Indian ricegrass, and annuals. <br />DISTRIBUTION AND EXTENT: Northern Arizona. The Wahweap series is of moderate <br />extent. <br />MLRA OFFICE RESPONSIBLE: Phoenix, Arizona <br />SERIES ESTABLISHED: Coconino County; Soil survey of Coconino County Area, <br />Arizona, North Kaibab Part; 1985. <br />REMARKS: Diagnostic horizons and features recognized in this pedon are: <br />• (REVISED 9/99) <br />Ochric epipedon -the zone from 0 to 1 inch (A horizon) <br />Calcic horizon -the zone from 1 to 19 inches (Bk1, Bk2 horizons) <br />Paralithic contact -the boundary at 19 inches (2Cr horizon) <br />National Cooperative Soil Survey <br />U.S.A. <br />2.04.9-58 <br />