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2/12/2014 <br />Official Series Description - CASCAJO Series <br />Volume of coarse fragments in the C ranges from 35 to 80 percent with 5 to 30 percent larger than 3 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 range from 2 <br />to 40 percent. The soils formed in very gravelly and sandy alluvium that ranges from about 4 to 20 feet thick over <br />shale or sandstone. Mean annual precipitation is about 12 inches and average annual temperature is about 52 <br />degrees F. <br />GEOGRAPHICALLY ASSOCIATED SOILS: These are the Otero, Harvey, Stoneham, and the competing <br />Pala sods. Otero sods lack a calcic horizon and are coarse, loamy. Harvey and Stoneham sods 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 areas are <br />used as source of sand and gravel <br />DISTRIBUTION AND EXTENT: Eastern Colorado and New Mexico. The series is of moderate extent and <br />individual areas are long and narrow, usually bordering major drainageways. <br />MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado <br />SERIES ESTABLISHED: Upper Rio Puerco Reconnaissance Soil Survey, New Mexico, 1940. <br />REMARKS: Cascajo sods have been correlated in Prowers County, Otero County, Bent Cowity, Crowley <br />County, and Pueblo County Area of Colorado, and in all areas are sandy - skeletal. <br />National Cooperative Soil Survey <br />U.S.A. <br />https://soiIseries.sc.egov.usda.gov/OSD—Docs/C/CASCA.JO.htM 2/2 <br />