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Official Series Description ASCAJO Series • Page 2 of 2 <br /> ' Volume of coarse fragments in the C ranges from 35 to 80 percent with 5 to 30 percent larger than 3 <br /> inches. <br /> COMPETING SERIES: The closely related Pala soils lack a calcic horizon. <br /> ' GEOGRAPHIC SETTING: Cascajo soils are on terrace edges, hills, knolls and ridges. Slopes <br /> range from 2 to 40 percent. The soils formed in very gravelly and sandy alluvium that ranges from <br /> about 4 to 20 feet thick over shale or sandstone. Mean annual precipitation is about 12 inches and <br /> ' average annual temperature is about 52 degrees F. <br /> GEOGRAPHICALLY ASSOCIATED SOILS: These are the Otero, Harvev, Stoneham and the <br /> ' competing Pala soils. Otero soils lack a calcic horizon and are coarse, loamy. Harvey and Stoneham <br /> soils are fine, loamy. <br /> ' DRAINAGE AND PERMEABILITY: Excessively drained; rapid permeability; slow runoff. <br /> USE AND VEGETATION: Primarily used for grazing, dominantly short and mid grasses. Many <br /> areas are used as source of sand and gravel. <br /> DISTRIBUTION AND EXTENT: Eastern Colorado and New Mexico. The series is of moderate <br /> ' extent and individual areas are long and narrow, usually bordering major drainageways. <br /> MLRA OFFICE RESPONSIBLE: Salina, Kansas <br /> ' SERIES ESTABLISHED: Upper Rio Puerco Reconnaissance Soil Survey, New Mexico, 1940. <br /> I ' REMARKS: Cascajo soils have been correlated in Prowers County, Otero County, Bent County, <br /> Crowley County, and Pueblo County Area of Colorado, and in all areas are sandy-skeletal. <br /> National Cooperative Soil Survey <br /> U.S.A <br />