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Soil Temperature: 52 to 56 degrees F. <br />Depth to paralithic contact: 10 to 20 inches. <br />Reaction: Mildly alkaline to strongly alkaline. <br />Percent clay in the control section: 18 to 35 percent. <br />A horizon - Hue: 10YR or 7.5YR and 5YR and 2.5YR in Arizona. <br />Value: 5 or 6 dry, 4 or 5 moist <br />Chroma: 2 through 4 <br />Texture: sandy loam, fine sandy loam, sandy clay loam or clay loam <br />Bw horizon - Hue: 10YR or 7.5YR and 5YR and 2.5YR in Arizona. Value: 5 or 6 day, 4 or 5 moist <br />Chroma: 3 or 4 <br />Texture: sandy loam, fine sandy loam or clay loam <br />Bt horizon - Hue: 7.5YR or 5YR and 2.5YR in Arizona. <br />Value: 5 or 6 dry <br />Chroma: 3 or 4 <br />Texture: sandy clay loam, loam or gravelly loam <br />Bk horizon - Hue: 7.5YR or 5YR and 2.5YR in Arizona. <br />Value: 5 or 6 dry <br />Chroma: 2 or 3 <br />Texture: sandy clay loam, clay loam, loam or gravelly loam. <br />COMPETING SERIES: This is the Advokay series (Nv). Advokay soils contain more than 15 percent <br />rock fragments and are effervescent in the argillic horizon. <br />GEOGRAPHIC SETTING: Monierco soils are on plateaus, knolls and ridges. Slopes range from 0 to <br />8 percent, Elevations range from 4800 to 6400 feet. The mean annual precipitation is 6 to 110 inches. <br />The mean annual temperature is 48 to 55 degrees F. The average frost -free period is 120 to 160 days. <br />In Arizona the temperature is as high as 57 degrees F.; frost free days as long as 180 days; <br />precipitation as <br />much as 12 inches; and slopes to 15 percent. <br />GEOGRAPHICALLY ASSOCIATED SOILS: These are the Mayqueen, Sheppard and Shiprock soils. <br />Mayqueen and Shiprock soil have less than 18 percent clay in the particle -size control section and are <br />deep. Sheppard soils are sandy and deep. <br />DRAINAGE AND PERMEABILITY: Well drained; medium runoff and moderately slow permeaility. <br />USE AND VEGETATION: These soils are used for livestock grazing. Native vegetation is galleta, <br />Mormon tea, blue grama, Indian ricegrass, big sagebrush, broom snakeweed and winterfat. <br />DISTRIBUTION AND EXTENT: The Monierco soils are of small <br />Attachment 2.04.9 -3 -22 <br />